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>

14 files changed, 0 insertions, 16 deletions

diff --git a/sysdeps/sh/_mcount.S b/sysdeps/sh/_mcount.S
index c55b918e7c..ebb19fbad6 100644
--- a/sysdeps/sh/_mcount.S
+++ b/sysdeps/sh/_mcount.S
@@ -1,6 +1,5 @@
 /* Machine-specific calling sequence for `mcount' profiling function.  SuperH
    Copyright (C) 2001-2021 Free Software Foundation, Inc.
-   Contributed by NIIBE Yutaka <gniibe@m17n.org>
    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/sh/jmpbuf-unwind.h b/sysdeps/sh/jmpbuf-unwind.h
index b1f49a810c..80f1d15fbb 100644
--- a/sysdeps/sh/jmpbuf-unwind.h
+++ b/sysdeps/sh/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/sh/memcpy.S b/sysdeps/sh/memcpy.S
index 9effc445bb..1bb680d770 100644
--- a/sysdeps/sh/memcpy.S
+++ b/sysdeps/sh/memcpy.S
@@ -1,7 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
-   Optimized by Toshiyasu Morita <toshiyasu.morita@hsa.hitachi.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/sh/memset.S b/sysdeps/sh/memset.S
index ebf4f3f9fb..791c87b13c 100644
--- a/sysdeps/sh/memset.S
+++ b/sysdeps/sh/memset.S
@@ -1,7 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
-   Optimized by Toshiyasu Morita <toshiyasu.morita@hsa.hitachi.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/sh/nptl/pthread_spin_init.c b/sysdeps/sh/nptl/pthread_spin_init.c
index 1d5c4183dd..7985649a05 100644
--- a/sysdeps/sh/nptl/pthread_spin_init.c
+++ b/sysdeps/sh/nptl/pthread_spin_init.c
@@ -1,6 +1,5 @@
 /* Copyright (C) 2002-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
    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/sh/sh4/fpu/fclrexcpt.c b/sysdeps/sh/sh4/fpu/fclrexcpt.c
index dc1d8fd884..bd36d1d176 100644
--- a/sysdeps/sh/sh4/fpu/fclrexcpt.c
+++ b/sysdeps/sh/sh4/fpu/fclrexcpt.c
@@ -1,7 +1,6 @@
 /* Clear given exceptions in current floating-point environment.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 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/sh/sh4/fpu/fedisblxcpt.c b/sysdeps/sh/sh4/fpu/fedisblxcpt.c
index 403a891ec4..d025e910cf 100644
--- a/sysdeps/sh/sh4/fpu/fedisblxcpt.c
+++ b/sysdeps/sh/sh4/fpu/fedisblxcpt.c
@@ -1,7 +1,6 @@
 /* Disable floating-point exceptions.
    Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
 
    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/sh/sh4/fpu/feenablxcpt.c b/sysdeps/sh/sh4/fpu/feenablxcpt.c
index 95e2b2ae9c..efd096d925 100644
--- a/sysdeps/sh/sh4/fpu/feenablxcpt.c
+++ b/sysdeps/sh/sh4/fpu/feenablxcpt.c
@@ -1,7 +1,6 @@
 /* Enable floating-point exceptions.
    Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
 
    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/sh/sh4/fpu/fegetexcept.c b/sysdeps/sh/sh4/fpu/fegetexcept.c
index 2ff9075de2..2677c8fbea 100644
--- a/sysdeps/sh/sh4/fpu/fegetexcept.c
+++ b/sysdeps/sh/sh4/fpu/fegetexcept.c
@@ -1,7 +1,6 @@
 /* Get enabled floating-point exceptions.
    Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
 
    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/sh/sh4/fpu/fegetround.c b/sysdeps/sh/sh4/fpu/fegetround.c
index 33612b3ca9..1e67a828f3 100644
--- a/sysdeps/sh/sh4/fpu/fegetround.c
+++ b/sysdeps/sh/sh4/fpu/fegetround.c
@@ -1,7 +1,6 @@
 /* Return current rounding direction.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 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/sh/sh4/fpu/fesetround.c b/sysdeps/sh/sh4/fpu/fesetround.c
index 4b0177773d..744c478f26 100644
--- a/sysdeps/sh/sh4/fpu/fesetround.c
+++ b/sysdeps/sh/sh4/fpu/fesetround.c
@@ -1,7 +1,6 @@
 /* Set current rounding direction.
    Copyright (C) 1998-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Andreas Jaeger <aj@arthur.rhein-neckar.de>, 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/sh/sh4/fpu/feupdateenv.c b/sysdeps/sh/sh4/fpu/feupdateenv.c
index 52da5c00be..94445a6e7a 100644
--- a/sysdeps/sh/sh4/fpu/feupdateenv.c
+++ b/sysdeps/sh/sh4/fpu/feupdateenv.c
@@ -1,7 +1,6 @@
 /* Install given floating-point environment and raise exceptions.
    Copyright (C) 2012-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
 
    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/sh/sh4/fpu/fraiseexcpt.c b/sysdeps/sh/sh4/fpu/fraiseexcpt.c
index 4fdd3bb59f..0f9a5d6062 100644
--- a/sysdeps/sh/sh4/fpu/fraiseexcpt.c
+++ b/sysdeps/sh/sh4/fpu/fraiseexcpt.c
@@ -1,7 +1,6 @@
 /* Raise given exceptions.
    Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Nobuhiro Iwamatsu <iwamatsu@nigauri.org>, 2012.
 
    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/sh/strlen.S b/sysdeps/sh/strlen.S
index 392c77e29b..f92ef72f1d 100644
--- a/sysdeps/sh/strlen.S
+++ b/sysdeps/sh/strlen.S
@@ -1,6 +1,5 @@
 /* Copyright (C) 1999-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Kazumoto Kojima <kkojima@rr.iij4u.or.jp>
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public