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>

10 files changed, 0 insertions, 10 deletions

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