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>

1 files changed, 0 insertions, 1 deletions

diff --git a/string/strnlen.c b/string/strnlen.c
index 99c882bb03..6bb904760c 100644
--- a/string/strnlen.c
+++ b/string/strnlen.c
@@ -1,6 +1,5 @@
 /* Find the length of STRING, but scan at most MAXLEN characters.
    Copyright (C) 1991-2021 Free Software Foundation, Inc.
-   Contributed by Jakub Jelinek <jakub@redhat.com>.
 
    Based on strlen written by Torbjorn Granlund (tege@sics.se),
    with help from Dan Sahlin (dan@sics.se);