Remove "Contributed by" lines

We stopped adding "Contributed by" or similar lines in sources in 2012
in favour of git logs and keeping the Contributors section of the
glibc manual up to date.  Removing these lines makes the license
header a bit more consistent across files and also removes the
possibility of error in attribution when license blocks or files are
copied across since the contributed-by lines don't actually reflect
reality in those cases.

Move all "Contributed by" and similar lines (Written by, Test by,
etc.) into a new file CONTRIBUTED-BY to retain record of these
contributions.  These contributors are also mentioned in
manual/contrib.texi, so we just maintain this additional record as a
courtesy to the earlier developers.

The following scripts were used to filter a list of files to edit in
place and to clean up the CONTRIBUTED-BY file respectively.  These
were not added to the glibc sources because they're not expected to be
of any use in future given that this is a one time task:

https://gist.github.com/siddhesh/b5ecac94eabfd72ed2916d6d8157e7dc
https://gist.github.com/siddhesh/15ea1f5e435ace9774f485030695ee02

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

70 files changed, 0 insertions, 74 deletions

diff --git a/sysdeps/powerpc/atomic-machine.h b/sysdeps/powerpc/atomic-machine.h
index cc3991b72f..7535ba5d19 100644
--- a/sysdeps/powerpc/atomic-machine.h
+++ b/sysdeps/powerpc/atomic-machine.h
@@ -1,7 +1,6 @@
 /* Atomic operations.  PowerPC Common version.
    Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/ffs.c b/sysdeps/powerpc/ffs.c
index a2b583fad0..9d681795d8 100644
--- a/sysdeps/powerpc/ffs.c
+++ b/sysdeps/powerpc/ffs.c
@@ -2,7 +2,6 @@
    For PowerPC.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/fpu/e_hypot.c b/sysdeps/powerpc/fpu/e_hypot.c
index b8dd2ff8d0..f96c589bbd 100644
--- a/sysdeps/powerpc/fpu/e_hypot.c
+++ b/sysdeps/powerpc/fpu/e_hypot.c
@@ -1,7 +1,6 @@
 /* Pythagorean addition using doubles
    Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library
-   Contributed by Adhemerval Zanella <azanella@br.ibm.com>, 2011
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
diff --git a/sysdeps/powerpc/fpu/e_hypotf.c b/sysdeps/powerpc/fpu/e_hypotf.c
index 1ac0a181c1..fa201dda51 100644
--- a/sysdeps/powerpc/fpu/e_hypotf.c
+++ b/sysdeps/powerpc/fpu/e_hypotf.c
@@ -1,7 +1,6 @@
 /* Pythagorean addition using floats
    Copyright (C) 2011-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Adhemerval Zanella <azanella@br.ibm.com>, 2011
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public License as
diff --git a/sysdeps/powerpc/fpu/fedisblxcpt.c b/sysdeps/powerpc/fpu/fedisblxcpt.c
index 684bcead89..84512d36f0 100644
--- a/sysdeps/powerpc/fpu/fedisblxcpt.c
+++ b/sysdeps/powerpc/fpu/fedisblxcpt.c
@@ -1,7 +1,6 @@
 /* Disable floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Geoffrey Keating <geoffk@geoffk.org>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/fpu/feenablxcpt.c b/sysdeps/powerpc/fpu/feenablxcpt.c
index 8902ac01a4..6a38ec894c 100644
--- a/sysdeps/powerpc/fpu/feenablxcpt.c
+++ b/sysdeps/powerpc/fpu/feenablxcpt.c
@@ -1,7 +1,6 @@
 /* Enable floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Geoffrey Keating <geoffk@geoffk.org>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/fpu/fegetexcept.c b/sysdeps/powerpc/fpu/fegetexcept.c
index 99e059a5bc..5bdba70233 100644
--- a/sysdeps/powerpc/fpu/fegetexcept.c
+++ b/sysdeps/powerpc/fpu/fegetexcept.c
@@ -1,7 +1,6 @@
 /* Get floating-point exceptions.
    Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Geoffrey Keating <geoffk@geoffk.org>, 2000.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/fpu/fesetround.c b/sysdeps/powerpc/fpu/fesetround.c
index 7c68b73230..1a02b17824 100644
--- a/sysdeps/powerpc/fpu/fesetround.c
+++ b/sysdeps/powerpc/fpu/fesetround.c
@@ -1,7 +1,6 @@
 /* Set current rounding direction.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/fpu/feupdateenv.c b/sysdeps/powerpc/fpu/feupdateenv.c
index b8f2c72eeb..031572f0af 100644
--- a/sysdeps/powerpc/fpu/feupdateenv.c
+++ b/sysdeps/powerpc/fpu/feupdateenv.c
@@ -1,7 +1,6 @@
 /* Install given floating-point environment and raise exceptions.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1997.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/fpu/tst-setcontext-fpscr.c b/sysdeps/powerpc/fpu/tst-setcontext-fpscr.c
index 2b48c57969..cee11cc676 100644
--- a/sysdeps/powerpc/fpu/tst-setcontext-fpscr.c
+++ b/sysdeps/powerpc/fpu/tst-setcontext-fpscr.c
@@ -1,7 +1,5 @@
 /* Copyright (C) 2001-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ryan S. Arnold <rsa@us.ibm.com>
-                  Sean Curry <spcurry@us.ibm.com>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/jmpbuf-unwind.h b/sysdeps/powerpc/jmpbuf-unwind.h
index 479cee1a6a..9e7c87a0bd 100644
--- a/sysdeps/powerpc/jmpbuf-unwind.h
+++ b/sysdeps/powerpc/jmpbuf-unwind.h
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Jakub Jelinek <jakub@redhat.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/nofpu/fclrexcpt.c b/sysdeps/powerpc/nofpu/fclrexcpt.c
index 7b135377d1..47c4f74434 100644
--- a/sysdeps/powerpc/nofpu/fclrexcpt.c
+++ b/sysdeps/powerpc/nofpu/fclrexcpt.c
@@ -1,6 +1,5 @@
 /* Clear floating-point exceptions (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fedisblxcpt.c b/sysdeps/powerpc/nofpu/fedisblxcpt.c
index 5905e59c31..a23a3cf1af 100644
--- a/sysdeps/powerpc/nofpu/fedisblxcpt.c
+++ b/sysdeps/powerpc/nofpu/fedisblxcpt.c
@@ -1,6 +1,5 @@
 /* Disable exceptions (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/feenablxcpt.c b/sysdeps/powerpc/nofpu/feenablxcpt.c
index 5382272467..5a2934a9e3 100644
--- a/sysdeps/powerpc/nofpu/feenablxcpt.c
+++ b/sysdeps/powerpc/nofpu/feenablxcpt.c
@@ -1,6 +1,5 @@
 /* Enable exceptions (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fegetenv.c b/sysdeps/powerpc/nofpu/fegetenv.c
index 60f8e4ec93..0f37f2b3fa 100644
--- a/sysdeps/powerpc/nofpu/fegetenv.c
+++ b/sysdeps/powerpc/nofpu/fegetenv.c
@@ -1,6 +1,5 @@
 /* Store current floating-point environment (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002, 2010.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fegetexcept.c b/sysdeps/powerpc/nofpu/fegetexcept.c
index 2ae706ce7a..0298294b99 100644
--- a/sysdeps/powerpc/nofpu/fegetexcept.c
+++ b/sysdeps/powerpc/nofpu/fegetexcept.c
@@ -1,6 +1,5 @@
 /* Get floating-point exceptions (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fegetround.c b/sysdeps/powerpc/nofpu/fegetround.c
index 064ce4c4f5..f222c766fa 100644
--- a/sysdeps/powerpc/nofpu/fegetround.c
+++ b/sysdeps/powerpc/nofpu/fegetround.c
@@ -1,6 +1,5 @@
 /* Return current rounding mode (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/feholdexcpt.c b/sysdeps/powerpc/nofpu/feholdexcpt.c
index 8daee529ed..def0a15489 100644
--- a/sysdeps/powerpc/nofpu/feholdexcpt.c
+++ b/sysdeps/powerpc/nofpu/feholdexcpt.c
@@ -1,7 +1,6 @@
 /* Store current floating-point environment and clear exceptions
    (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fenv_const.c b/sysdeps/powerpc/nofpu/fenv_const.c
index 5e68d7c70d..6a86fc5053 100644
--- a/sysdeps/powerpc/nofpu/fenv_const.c
+++ b/sysdeps/powerpc/nofpu/fenv_const.c
@@ -1,6 +1,5 @@
 /* Constants for fenv_bits.h (soft float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fesetenv.c b/sysdeps/powerpc/nofpu/fesetenv.c
index 0ac605377f..ecb4b01825 100644
--- a/sysdeps/powerpc/nofpu/fesetenv.c
+++ b/sysdeps/powerpc/nofpu/fesetenv.c
@@ -1,6 +1,5 @@
 /* Set floating point environment (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fesetround.c b/sysdeps/powerpc/nofpu/fesetround.c
index ea4b9571c2..b378d0c634 100644
--- a/sysdeps/powerpc/nofpu/fesetround.c
+++ b/sysdeps/powerpc/nofpu/fesetround.c
@@ -1,6 +1,5 @@
 /* Set rounding mode (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/feupdateenv.c b/sysdeps/powerpc/nofpu/feupdateenv.c
index e073debc59..fac5222629 100644
--- a/sysdeps/powerpc/nofpu/feupdateenv.c
+++ b/sysdeps/powerpc/nofpu/feupdateenv.c
@@ -1,7 +1,6 @@
 /* Install given floating-point environment and raise exceptions
    (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fgetexcptflg.c b/sysdeps/powerpc/nofpu/fgetexcptflg.c
index 147cf7e0a6..fceb9c0d6f 100644
--- a/sysdeps/powerpc/nofpu/fgetexcptflg.c
+++ b/sysdeps/powerpc/nofpu/fgetexcptflg.c
@@ -1,6 +1,5 @@
 /* Store current representation for exceptions (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fraiseexcpt.c b/sysdeps/powerpc/nofpu/fraiseexcpt.c
index 2d19882851..55e16b53ea 100644
--- a/sysdeps/powerpc/nofpu/fraiseexcpt.c
+++ b/sysdeps/powerpc/nofpu/fraiseexcpt.c
@@ -1,6 +1,5 @@
 /* Raise given exceptions (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/fsetexcptflg.c b/sysdeps/powerpc/nofpu/fsetexcptflg.c
index 2c8015dbe6..28190ddf5e 100644
--- a/sysdeps/powerpc/nofpu/fsetexcptflg.c
+++ b/sysdeps/powerpc/nofpu/fsetexcptflg.c
@@ -1,6 +1,5 @@
 /* Set floating-point environment exception handling (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/ftestexcept.c b/sysdeps/powerpc/nofpu/ftestexcept.c
index b7d08eca96..a764ab5bd3 100644
--- a/sysdeps/powerpc/nofpu/ftestexcept.c
+++ b/sysdeps/powerpc/nofpu/ftestexcept.c
@@ -1,6 +1,5 @@
 /* Test floating-point exceptions (soft-float edition).
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/sim-full.c b/sysdeps/powerpc/nofpu/sim-full.c
index ab1e97d9ed..c2bf888b7c 100644
--- a/sysdeps/powerpc/nofpu/sim-full.c
+++ b/sysdeps/powerpc/nofpu/sim-full.c
@@ -1,6 +1,5 @@
 /* Software floating-point exception handling emulation.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/soft-supp.h b/sysdeps/powerpc/nofpu/soft-supp.h
index 345dfdffda..1cd19df837 100644
--- a/sysdeps/powerpc/nofpu/soft-supp.h
+++ b/sysdeps/powerpc/nofpu/soft-supp.h
@@ -1,6 +1,5 @@
 /* Internal support stuff for complete soft float.
    Copyright (C) 2002-2021 Free Software Foundation, Inc.
-   Contributed by Aldy Hernandez <aldyh@redhat.com>, 2002.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/nofpu/sqrtdf2.c b/sysdeps/powerpc/nofpu/sqrtdf2.c
index 7204632d68..5da213d9a1 100644
--- a/sysdeps/powerpc/nofpu/sqrtdf2.c
+++ b/sysdeps/powerpc/nofpu/sqrtdf2.c
@@ -2,8 +2,6 @@
    Return sqrt(a)
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/nofpu/sqrtsf2.c b/sysdeps/powerpc/nofpu/sqrtsf2.c
index 2b19e3a746..2137d0b5f7 100644
--- a/sysdeps/powerpc/nofpu/sqrtsf2.c
+++ b/sysdeps/powerpc/nofpu/sqrtsf2.c
@@ -2,8 +2,6 @@
    Return sqrt(a)
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Richard Henderson (rth@cygnus.com) and
-		  Jakub Jelinek (jj@ultra.linux.cz).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/nptl/pthread_spin_lock.c b/sysdeps/powerpc/nptl/pthread_spin_lock.c
index a17dd41c10..b62612fc3e 100644
--- a/sysdeps/powerpc/nptl/pthread_spin_lock.c
+++ b/sysdeps/powerpc/nptl/pthread_spin_lock.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/nptl/pthread_spin_trylock.c b/sysdeps/powerpc/nptl/pthread_spin_trylock.c
index a9021b26ae..45fe6ad294 100644
--- a/sysdeps/powerpc/nptl/pthread_spin_trylock.c
+++ b/sysdeps/powerpc/nptl/pthread_spin_trylock.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/power4/wordcopy.c b/sysdeps/powerpc/power4/wordcopy.c
index f7ca1df7c3..e5c951574c 100644
--- a/sysdeps/powerpc/power4/wordcopy.c
+++ b/sysdeps/powerpc/power4/wordcopy.c
@@ -1,7 +1,6 @@
 /* _memcopy.c -- subroutines for memory copy functions.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/power6/wordcopy.c b/sysdeps/powerpc/power6/wordcopy.c
index fc36f250bc..278b26c79f 100644
--- a/sysdeps/powerpc/power6/wordcopy.c
+++ b/sysdeps/powerpc/power6/wordcopy.c
@@ -1,8 +1,6 @@
 /* _memcopy.c -- subroutines for memory copy functions.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
-   Updated for POWER6 by Steven Munroe (sjmunroe@us.ibm.com).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/powerpc32/a2/memcpy.S b/sysdeps/powerpc/powerpc32/a2/memcpy.S
index 41eb5aaf3c..ef51774e3f 100644
--- a/sysdeps/powerpc/powerpc32/a2/memcpy.S
+++ b/sysdeps/powerpc/powerpc32/a2/memcpy.S
@@ -1,6 +1,5 @@
 /* Optimized memcpy implementation for PowerPC A2.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Michael Brutman <brutman@us.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/atomic-machine.h b/sysdeps/powerpc/powerpc32/atomic-machine.h
index c03507ec1d..125a24ddf7 100644
--- a/sysdeps/powerpc/powerpc32/atomic-machine.h
+++ b/sysdeps/powerpc/powerpc32/atomic-machine.h
@@ -1,7 +1,6 @@
 /* Atomic operations.  PowerPC32 version.
    Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/powerpc32/power4/hp-timing.h b/sysdeps/powerpc/powerpc32/power4/hp-timing.h
index d1e5b3ca54..ee5e016b5c 100644
--- a/sysdeps/powerpc/powerpc32/power4/hp-timing.h
+++ b/sysdeps/powerpc/powerpc32/power4/hp-timing.h
@@ -1,7 +1,6 @@
 /* High precision, low overhead timing functions.  powerpc64 version.
    Copyright (C) 2005-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/powerpc32/power4/memcopy.h b/sysdeps/powerpc/powerpc32/power4/memcopy.h
index a38e79307c..88c0ec0710 100644
--- a/sysdeps/powerpc/powerpc32/power4/memcopy.h
+++ b/sysdeps/powerpc/powerpc32/power4/memcopy.h
@@ -1,7 +1,6 @@
 /* memcopy.h -- definitions for memory copy functions.  Generic C version.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power6.S b/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power6.S
index a4b82f24f0..e6c4d0ac09 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power6.S
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power6.S
@@ -1,6 +1,5 @@
 /* Optimized bzero implementation for PowerPC32/POWER6.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power7.S
index e59af8621b..67c4bfe3b8 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power7.S
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-power7.S
@@ -1,6 +1,5 @@
 /* Optimized bzero implementation for PowerPC32/POWER7.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-ppc32.S b/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-ppc32.S
index 04413f690d..c752d7e35d 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-ppc32.S
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/bzero-ppc32.S
@@ -1,6 +1,5 @@
 /* Optimized bzero implementation for PowerPC32/PPC32.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S
index 55da8ad023..fc2f6f6581 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/memchr-power7.S
@@ -1,6 +1,5 @@
 /* Optimized memchr implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S
index b5612c5463..1b85e85308 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-power7.S
@@ -1,6 +1,5 @@
 /* Optimized memrchr implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-power7.S
index d73153ed73..3b75dda9cd 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-power7.S
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr-power7.S
@@ -1,6 +1,5 @@
 /* Optimized rawrawmemchr implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-power7.S b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-power7.S
index 201593f874..42d6d28ade 100644
--- a/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-power7.S
+++ b/sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-power7.S
@@ -1,6 +1,5 @@
 /* Optimized strnlen implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/memchr.S b/sysdeps/powerpc/powerpc32/power7/memchr.S
index 82bf05adbb..bbd332682a 100644
--- a/sysdeps/powerpc/powerpc32/power7/memchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/memchr.S
@@ -1,6 +1,5 @@
 /* Optimized memchr implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/memcpy.S b/sysdeps/powerpc/powerpc32/power7/memcpy.S
index a129234a95..58c8620abf 100644
--- a/sysdeps/powerpc/powerpc32/power7/memcpy.S
+++ b/sysdeps/powerpc/powerpc32/power7/memcpy.S
@@ -1,6 +1,5 @@
 /* Optimized memcpy implementation for PowerPC32/POWER7.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/mempcpy.S b/sysdeps/powerpc/powerpc32/power7/mempcpy.S
index 49b9369f7b..2ea50fbbcb 100644
--- a/sysdeps/powerpc/powerpc32/power7/mempcpy.S
+++ b/sysdeps/powerpc/powerpc32/power7/mempcpy.S
@@ -1,6 +1,5 @@
 /* Optimized mempcpy implementation for POWER7.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/memrchr.S b/sysdeps/powerpc/powerpc32/power7/memrchr.S
index 5d8c4b7de6..73a2d8e120 100644
--- a/sysdeps/powerpc/powerpc32/power7/memrchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/memrchr.S
@@ -1,6 +1,5 @@
 /* Optimized memrchr implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/memset.S b/sysdeps/powerpc/powerpc32/power7/memset.S
index 4619d6cfbe..b74d0bc3aa 100644
--- a/sysdeps/powerpc/powerpc32/power7/memset.S
+++ b/sysdeps/powerpc/powerpc32/power7/memset.S
@@ -1,6 +1,5 @@
 /* Optimized memset implementation for PowerPC32/POWER7.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/rawmemchr.S b/sysdeps/powerpc/powerpc32/power7/rawmemchr.S
index f18cea4924..369b881036 100644
--- a/sysdeps/powerpc/powerpc32/power7/rawmemchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/rawmemchr.S
@@ -1,6 +1,5 @@
 /* Optimized rawmemchr implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/strchr.S b/sysdeps/powerpc/powerpc32/power7/strchr.S
index 8277d4fdcb..cb621e3a8d 100644
--- a/sysdeps/powerpc/powerpc32/power7/strchr.S
+++ b/sysdeps/powerpc/powerpc32/power7/strchr.S
@@ -1,6 +1,5 @@
 /* Optimized strchr implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/strchrnul.S b/sysdeps/powerpc/powerpc32/power7/strchrnul.S
index 17c553b274..c716f691ae 100644
--- a/sysdeps/powerpc/powerpc32/power7/strchrnul.S
+++ b/sysdeps/powerpc/powerpc32/power7/strchrnul.S
@@ -1,6 +1,5 @@
 /* Optimized strchrnul implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/strlen.S b/sysdeps/powerpc/powerpc32/power7/strlen.S
index 0c7da4b7bd..ee0f254e1e 100644
--- a/sysdeps/powerpc/powerpc32/power7/strlen.S
+++ b/sysdeps/powerpc/powerpc32/power7/strlen.S
@@ -1,6 +1,5 @@
 /* Optimized strlen implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc32/power7/strnlen.S b/sysdeps/powerpc/powerpc32/power7/strnlen.S
index 2b3b7faf52..67ff821d19 100644
--- a/sysdeps/powerpc/powerpc32/power7/strnlen.S
+++ b/sysdeps/powerpc/powerpc32/power7/strnlen.S
@@ -1,6 +1,5 @@
 /* Optimized strnlen implementation for PowerPC32/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/a2/memcpy.S b/sysdeps/powerpc/powerpc64/a2/memcpy.S
index c20671491a..932f4c8381 100644
--- a/sysdeps/powerpc/powerpc64/a2/memcpy.S
+++ b/sysdeps/powerpc/powerpc64/a2/memcpy.S
@@ -1,6 +1,5 @@
 /* Optimized memcpy implementation for PowerPC A2.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Michael Brutman <brutman@us.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/atomic-machine.h b/sysdeps/powerpc/powerpc64/atomic-machine.h
index 28334c2c31..0391ac3b75 100644
--- a/sysdeps/powerpc/powerpc64/atomic-machine.h
+++ b/sysdeps/powerpc/powerpc64/atomic-machine.h
@@ -1,7 +1,6 @@
 /* Atomic operations.  PowerPC64 version.
    Copyright (C) 2003-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Paul Mackerras <paulus@au.ibm.com>, 2003.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/powerpc64/ffsll.c b/sysdeps/powerpc/powerpc64/ffsll.c
index 8959992b15..ef5280248b 100644
--- a/sysdeps/powerpc/powerpc64/ffsll.c
+++ b/sysdeps/powerpc/powerpc64/ffsll.c
@@ -2,7 +2,6 @@
    For PowerPC.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund (tege@sics.se).
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/powerpc64/hp-timing.h b/sysdeps/powerpc/powerpc64/hp-timing.h
index dc2881ecc7..a2f6303c0e 100644
--- a/sysdeps/powerpc/powerpc64/hp-timing.h
+++ b/sysdeps/powerpc/powerpc64/hp-timing.h
@@ -1,7 +1,6 @@
 /* High precision, low overhead timing functions.  powerpc64 version.
    Copyright (C) 2005-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@cygnus.com>, 1998.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public
diff --git a/sysdeps/powerpc/powerpc64/power7/memchr.S b/sysdeps/powerpc/powerpc64/power7/memchr.S
index 0104e86d6f..ef27369963 100644
--- a/sysdeps/powerpc/powerpc64/power7/memchr.S
+++ b/sysdeps/powerpc/powerpc64/power7/memchr.S
@@ -1,6 +1,5 @@
 /* Optimized memchr implementation for PowerPC64/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/memcpy.S b/sysdeps/powerpc/powerpc64/power7/memcpy.S
index 589d99bca9..abde9be219 100644
--- a/sysdeps/powerpc/powerpc64/power7/memcpy.S
+++ b/sysdeps/powerpc/powerpc64/power7/memcpy.S
@@ -1,6 +1,5 @@
 /* Optimized memcpy implementation for PowerPC64/POWER7.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/mempcpy.S b/sysdeps/powerpc/powerpc64/power7/mempcpy.S
index 5f4b253183..d4dbcc3656 100644
--- a/sysdeps/powerpc/powerpc64/power7/mempcpy.S
+++ b/sysdeps/powerpc/powerpc64/power7/mempcpy.S
@@ -1,6 +1,5 @@
 /* Optimized mempcpy implementation for POWER7.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/memrchr.S b/sysdeps/powerpc/powerpc64/power7/memrchr.S
index bd913700ba..4324ba2d92 100644
--- a/sysdeps/powerpc/powerpc64/power7/memrchr.S
+++ b/sysdeps/powerpc/powerpc64/power7/memrchr.S
@@ -1,6 +1,5 @@
 /* Optimized memrchr implementation for PowerPC64/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/memset.S b/sysdeps/powerpc/powerpc64/power7/memset.S
index 8b256d3156..e03e17b270 100644
--- a/sysdeps/powerpc/powerpc64/power7/memset.S
+++ b/sysdeps/powerpc/powerpc64/power7/memset.S
@@ -1,6 +1,5 @@
 /* Optimized memset implementation for PowerPC64/POWER7.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/rawmemchr.S b/sysdeps/powerpc/powerpc64/power7/rawmemchr.S
index 5edcd60131..0786bf40c7 100644
--- a/sysdeps/powerpc/powerpc64/power7/rawmemchr.S
+++ b/sysdeps/powerpc/powerpc64/power7/rawmemchr.S
@@ -1,6 +1,5 @@
 /* Optimized rawmemchr implementation for PowerPC64/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/strchr.S b/sysdeps/powerpc/powerpc64/power7/strchr.S
index e7afed1d95..7cc9122135 100644
--- a/sysdeps/powerpc/powerpc64/power7/strchr.S
+++ b/sysdeps/powerpc/powerpc64/power7/strchr.S
@@ -1,6 +1,5 @@
 /* Optimized strchr implementation for PowerPC64/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/strchrnul.S b/sysdeps/powerpc/powerpc64/power7/strchrnul.S
index 568a77afd8..a4e0460891 100644
--- a/sysdeps/powerpc/powerpc64/power7/strchrnul.S
+++ b/sysdeps/powerpc/powerpc64/power7/strchrnul.S
@@ -1,6 +1,5 @@
 /* Optimized strchrnul implementation for PowerPC64/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/strlen.S b/sysdeps/powerpc/powerpc64/power7/strlen.S
index c8e6c3d9fb..c569595d0d 100644
--- a/sysdeps/powerpc/powerpc64/power7/strlen.S
+++ b/sysdeps/powerpc/powerpc64/power7/strlen.S
@@ -1,6 +1,5 @@
 /* Optimized strlen implementation for PowerPC64/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power7/strnlen.S b/sysdeps/powerpc/powerpc64/power7/strnlen.S
index a6f22c13be..a6742555bb 100644
--- a/sysdeps/powerpc/powerpc64/power7/strnlen.S
+++ b/sysdeps/powerpc/powerpc64/power7/strnlen.S
@@ -1,6 +1,5 @@
 /* Optimized strnlen implementation for PowerPC64/POWER7 using cmpb insn.
    Copyright (C) 2010-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/sysdeps/powerpc/powerpc64/power8/memrchr.S b/sysdeps/powerpc/powerpc64/power8/memrchr.S
index 434c3cbac7..e51a0ef597 100644
--- a/sysdeps/powerpc/powerpc64/power8/memrchr.S
+++ b/sysdeps/powerpc/powerpc64/power8/memrchr.S
@@ -1,6 +1,5 @@
 /* Optimized memrchr implementation for PowerPC64/POWER8.
    Copyright (C) 2017-2021 Free Software Foundation, Inc.
-   Contributed by Luis Machado <luisgpm@br.ibm.com>.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or