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>

6 files changed, 0 insertions, 6 deletions

diff --git a/sysdeps/i386/i586/memcopy.h b/sysdeps/i386/i586/memcopy.h
index 820c2b1..9ac599b 100644
--- a/sysdeps/i386/i586/memcopy.h
+++ b/sysdeps/i386/i586/memcopy.h
@@ -1,6 +1,5 @@
 /* memcopy.h -- definitions for memory copy functions.  Pentium version.
    Copyright (C) 1994-2021 Free Software Foundation, Inc.
-   Contributed by Torbjorn Granlund (tege@sics.se).
    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/i386/i586/memcpy.S b/sysdeps/i386/i586/memcpy.S
index 9fff5f7..d948d13 100644
--- a/sysdeps/i386/i586/memcpy.S
+++ b/sysdeps/i386/i586/memcpy.S
@@ -1,7 +1,6 @@
 /* Highly optimized version for i586.
    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/i386/i586/memset.S b/sysdeps/i386/i586/memset.S
index 9e618a8..0c5de6a 100644
--- a/sysdeps/i386/i586/memset.S
+++ b/sysdeps/i386/i586/memset.S
@@ -2,7 +2,6 @@
    Highly optimized version for ix86, x>=5.
    Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Torbjorn Granlund, <tege@matematik.su.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/i386/i586/strchr.S b/sysdeps/i386/i586/strchr.S
index e61029a..37c7526 100644
--- a/sysdeps/i386/i586/strchr.S
+++ b/sysdeps/i386/i586/strchr.S
@@ -2,7 +2,6 @@
    Highly optimized version for ix85, x>=5.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
 
    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/i386/i586/strcpy.S b/sysdeps/i386/i586/strcpy.S
index 3d5e32b..183a085 100644
--- a/sysdeps/i386/i586/strcpy.S
+++ b/sysdeps/i386/i586/strcpy.S
@@ -1,7 +1,6 @@
 /* strcpy/stpcpy implementation for i586.
    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/i386/i586/strlen.S b/sysdeps/i386/i586/strlen.S
index c0525b8..c72588c 100644
--- a/sysdeps/i386/i586/strlen.S
+++ b/sysdeps/i386/i586/strlen.S
@@ -2,7 +2,6 @@
    Highly optimized version for ix86, x>=5.
    Copyright (C) 1995-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
-   Contributed by Ulrich Drepper, <drepper@gnu.ai.mit.edu>.
 
    The GNU C Library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Lesser General Public