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>

19 files changed, 0 insertions, 21 deletions

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