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 7b13537..47c4f74 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 5905e59..a23a3cf 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 5382272..5a2934a 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 60f8e4e..0f37f2b 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 2ae706c..0298294 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 064ce4c..f222c76 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 8daee52..def0a15 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 5e68d7c..6a86fc5 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 0ac6053..ecb4b01 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 ea4b957..b378d0c 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 e073deb..fac5222 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 147cf7e..fceb9c0 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 2d19882..55e16b5 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 2c8015d..28190dd 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 b7d08ec..a764ab5 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 ab1e97d..c2bf888 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 345dfdf..1cd19df 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 7204632..5da213d 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 2b19e3a..2137d0b 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