Update copyright dates with scripts/update-copyrights

I used these shell commands:

../glibc/scripts/update-copyrights $PWD/../gnulib/build-aux/update-copyright
(cd ../glibc && git commit -am"[this commit message]")

and then ignored the output, which consisted lines saying "FOO: warning:
copyright statement not found" for each of 6694 files FOO.
I then removed trailing white space from benchtests/bench-pthread-locks.c
and iconvdata/tst-iconv-big5-hkscs-to-2ucs4.c, to work around this
diagnostic from Savannah:
remote: *** pre-commit check failed ...
remote: *** error: lines with trailing whitespace found
remote: error: hook declined to update refs/heads/master

17 files changed, 17 insertions, 17 deletions

diff --git a/sysdeps/sh/sh4/fpu/fclrexcpt.c b/sysdeps/sh/sh4/fpu/fclrexcpt.c
index e22414b..dc1d8fd 100644
--- a/sysdeps/sh/sh4/fpu/fclrexcpt.c
+++ b/sysdeps/sh/sh4/fpu/fclrexcpt.c
@@ -1,5 +1,5 @@
 /* Clear given exceptions in current floating-point environment.
-   Copyright (C) 1998-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/sh/sh4/fpu/fedisblxcpt.c b/sysdeps/sh/sh4/fpu/fedisblxcpt.c
index 51b2ebf..403a891 100644
--- a/sysdeps/sh/sh4/fpu/fedisblxcpt.c
+++ b/sysdeps/sh/sh4/fpu/fedisblxcpt.c
@@ -1,5 +1,5 @@
 /* Disable floating-point exceptions.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/sh/sh4/fpu/feenablxcpt.c b/sysdeps/sh/sh4/fpu/feenablxcpt.c
index c31a9c3..95e2b2a 100644
--- a/sysdeps/sh/sh4/fpu/feenablxcpt.c
+++ b/sysdeps/sh/sh4/fpu/feenablxcpt.c
@@ -1,5 +1,5 @@
 /* Enable floating-point exceptions.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/sh/sh4/fpu/fegetenv.c b/sysdeps/sh/sh4/fpu/fegetenv.c
index 733aa45..521f367 100644
--- a/sysdeps/sh/sh4/fpu/fegetenv.c
+++ b/sysdeps/sh/sh4/fpu/fegetenv.c
@@ -1,5 +1,5 @@
 /* Store current floating-point environment.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    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/sh4/fpu/fegetexcept.c b/sysdeps/sh/sh4/fpu/fegetexcept.c
index 4542e30..2ff9075d 100644
--- a/sysdeps/sh/sh4/fpu/fegetexcept.c
+++ b/sysdeps/sh/sh4/fpu/fegetexcept.c
@@ -1,5 +1,5 @@
 /* Get enabled floating-point exceptions.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/sh/sh4/fpu/fegetmode.c b/sysdeps/sh/sh4/fpu/fegetmode.c
index d194d7e..675f5fb 100644
--- a/sysdeps/sh/sh4/fpu/fegetmode.c
+++ b/sysdeps/sh/sh4/fpu/fegetmode.c
@@ -1,5 +1,5 @@
 /* Store current floating-point control modes.  SH4 version.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    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/sh4/fpu/fegetround.c b/sysdeps/sh/sh4/fpu/fegetround.c
index 7c79d91..33612b3 100644
--- a/sysdeps/sh/sh4/fpu/fegetround.c
+++ b/sysdeps/sh/sh4/fpu/fegetround.c
@@ -1,5 +1,5 @@
 /* Return current rounding direction.
-   Copyright (C) 1998-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/sh/sh4/fpu/feholdexcpt.c b/sysdeps/sh/sh4/fpu/feholdexcpt.c
index a2196fd..190eff9 100644
--- a/sysdeps/sh/sh4/fpu/feholdexcpt.c
+++ b/sysdeps/sh/sh4/fpu/feholdexcpt.c
@@ -1,5 +1,5 @@
 /* Store current floating-point environment and clear exceptions.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    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/sh4/fpu/fesetenv.c b/sysdeps/sh/sh4/fpu/fesetenv.c
index 88aa0df..40f223c 100644
--- a/sysdeps/sh/sh4/fpu/fesetenv.c
+++ b/sysdeps/sh/sh4/fpu/fesetenv.c
@@ -1,5 +1,5 @@
 /* Install given floating-point environment.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    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/sh4/fpu/fesetexcept.c b/sysdeps/sh/sh4/fpu/fesetexcept.c
index 8102a2d..97251e8 100644
--- a/sysdeps/sh/sh4/fpu/fesetexcept.c
+++ b/sysdeps/sh/sh4/fpu/fesetexcept.c
@@ -1,5 +1,5 @@
 /* Set given exception flags.  SH4 version.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    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/sh4/fpu/fesetmode.c b/sysdeps/sh/sh4/fpu/fesetmode.c
index d9fb4e0..a933e51 100644
--- a/sysdeps/sh/sh4/fpu/fesetmode.c
+++ b/sysdeps/sh/sh4/fpu/fesetmode.c
@@ -1,5 +1,5 @@
 /* Install given floating-point control modes.  SH4 version.
-   Copyright (C) 2016-2020 Free Software Foundation, Inc.
+   Copyright (C) 2016-2021 Free Software Foundation, Inc.
    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/sh4/fpu/fesetround.c b/sysdeps/sh/sh4/fpu/fesetround.c
index a93d917..4b01777 100644
--- a/sysdeps/sh/sh4/fpu/fesetround.c
+++ b/sysdeps/sh/sh4/fpu/fesetround.c
@@ -1,5 +1,5 @@
 /* Set current rounding direction.
-   Copyright (C) 1998-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/sh/sh4/fpu/feupdateenv.c b/sysdeps/sh/sh4/fpu/feupdateenv.c
index e6aac76..52da5c0 100644
--- a/sysdeps/sh/sh4/fpu/feupdateenv.c
+++ b/sysdeps/sh/sh4/fpu/feupdateenv.c
@@ -1,5 +1,5 @@
 /* Install given floating-point environment and raise exceptions.
-   Copyright (C) 2012-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/sh/sh4/fpu/fgetexcptflg.c b/sysdeps/sh/sh4/fpu/fgetexcptflg.c
index 0e66777..931dd53 100644
--- a/sysdeps/sh/sh4/fpu/fgetexcptflg.c
+++ b/sysdeps/sh/sh4/fpu/fgetexcptflg.c
@@ -1,5 +1,5 @@
 /* Store current representation for exceptions.
-   Copyright (C) 2013-2020 Free Software Foundation, Inc.
+   Copyright (C) 2013-2021 Free Software Foundation, Inc.
    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/sh4/fpu/fraiseexcpt.c b/sysdeps/sh/sh4/fpu/fraiseexcpt.c
index 747bc31..4fdd3bb 100644
--- a/sysdeps/sh/sh4/fpu/fraiseexcpt.c
+++ b/sysdeps/sh/sh4/fpu/fraiseexcpt.c
@@ -1,5 +1,5 @@
 /* Raise given exceptions.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   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.
 
diff --git a/sysdeps/sh/sh4/fpu/fsetexcptflg.c b/sysdeps/sh/sh4/fpu/fsetexcptflg.c
index 6cbed76..f8533c1 100644
--- a/sysdeps/sh/sh4/fpu/fsetexcptflg.c
+++ b/sysdeps/sh/sh4/fpu/fsetexcptflg.c
@@ -1,5 +1,5 @@
 /* Set floating-point environment exception handling.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    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/sh4/fpu/ftestexcept.c b/sysdeps/sh/sh4/fpu/ftestexcept.c
index 77240f5..b0cf70c 100644
--- a/sysdeps/sh/sh4/fpu/ftestexcept.c
+++ b/sysdeps/sh/sh4/fpu/ftestexcept.c
@@ -1,5 +1,5 @@
 /* Test exception in current environment.
-   Copyright (C) 1997-2020 Free Software Foundation, Inc.
+   Copyright (C) 1997-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or