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

16 files changed, 16 insertions, 16 deletions

diff --git a/sysdeps/m68k/fpu/fclrexcpt.c b/sysdeps/m68k/fpu/fclrexcpt.c
index f68be0fd5f..7817370996 100644
--- a/sysdeps/m68k/fpu/fclrexcpt.c
+++ b/sysdeps/m68k/fpu/fclrexcpt.c
@@ -1,5 +1,5 @@
 /* Clear given exceptions in 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.
    Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/fedisblxcpt.c b/sysdeps/m68k/fpu/fedisblxcpt.c
index 9710c54b21..6328c2bb40 100644
--- a/sysdeps/m68k/fpu/fedisblxcpt.c
+++ b/sysdeps/m68k/fpu/fedisblxcpt.c
@@ -1,5 +1,5 @@
 /* Disable floating-point exceptions.
-   Copyright (C) 2000-2020 Free Software Foundation, Inc.
+   Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Schwab <schwab@suse.de>, 2000.
 
diff --git a/sysdeps/m68k/fpu/feenablxcpt.c b/sysdeps/m68k/fpu/feenablxcpt.c
index 9cb7d739a2..e17b398882 100644
--- a/sysdeps/m68k/fpu/feenablxcpt.c
+++ b/sysdeps/m68k/fpu/feenablxcpt.c
@@ -1,5 +1,5 @@
 /* Enable floating-point exceptions.
-   Copyright (C) 2000-2020 Free Software Foundation, Inc.
+   Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Schwab <schwab@suse.de>, 2000.
 
diff --git a/sysdeps/m68k/fpu/fegetenv.c b/sysdeps/m68k/fpu/fegetenv.c
index 9555140e9e..ff33ea8ee7 100644
--- a/sysdeps/m68k/fpu/fegetenv.c
+++ b/sysdeps/m68k/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.
    Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/fegetexcept.c b/sysdeps/m68k/fpu/fegetexcept.c
index 62b89c9704..b394f1a19d 100644
--- a/sysdeps/m68k/fpu/fegetexcept.c
+++ b/sysdeps/m68k/fpu/fegetexcept.c
@@ -1,5 +1,5 @@
 /* Get enabled floating-point exceptions.
-   Copyright (C) 2000-2020 Free Software Foundation, Inc.
+   Copyright (C) 2000-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Andreas Schwab <schwab@suse.de>, 2000.
 
diff --git a/sysdeps/m68k/fpu/fegetmode.c b/sysdeps/m68k/fpu/fegetmode.c
index bc6c5d6715..17c40cc115 100644
--- a/sysdeps/m68k/fpu/fegetmode.c
+++ b/sysdeps/m68k/fpu/fegetmode.c
@@ -1,5 +1,5 @@
 /* Store current floating-point control modes.  M68K 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/m68k/fpu/fegetround.c b/sysdeps/m68k/fpu/fegetround.c
index 11bf6cd254..587f77cb4a 100644
--- a/sysdeps/m68k/fpu/fegetround.c
+++ b/sysdeps/m68k/fpu/fegetround.c
@@ -1,5 +1,5 @@
 /* Return current rounding direction.
-   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 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/feholdexcpt.c b/sysdeps/m68k/fpu/feholdexcpt.c
index 1abad70f1b..5cda1d52fb 100644
--- a/sysdeps/m68k/fpu/feholdexcpt.c
+++ b/sysdeps/m68k/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.
    Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/fesetenv.c b/sysdeps/m68k/fpu/fesetenv.c
index 53d5806442..b68cd307c7 100644
--- a/sysdeps/m68k/fpu/fesetenv.c
+++ b/sysdeps/m68k/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.
    Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/fesetexcept.c b/sysdeps/m68k/fpu/fesetexcept.c
index 556b9b9cc4..1ca32a8e25 100644
--- a/sysdeps/m68k/fpu/fesetexcept.c
+++ b/sysdeps/m68k/fpu/fesetexcept.c
@@ -1,5 +1,5 @@
 /* Set given exception flags.  M68K 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/m68k/fpu/fesetmode.c b/sysdeps/m68k/fpu/fesetmode.c
index bac5ae13e5..5471bf37be 100644
--- a/sysdeps/m68k/fpu/fesetmode.c
+++ b/sysdeps/m68k/fpu/fesetmode.c
@@ -1,5 +1,5 @@
 /* Install given floating-point control modes.  M68K 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/m68k/fpu/fesetround.c b/sysdeps/m68k/fpu/fesetround.c
index 92bc35b1fe..2a7e295d1f 100644
--- a/sysdeps/m68k/fpu/fesetround.c
+++ b/sysdeps/m68k/fpu/fesetround.c
@@ -1,5 +1,5 @@
 /* Set current rounding direction.
-   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 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/feupdateenv.c b/sysdeps/m68k/fpu/feupdateenv.c
index d2c494570e..1b0edc1ac1 100644
--- a/sysdeps/m68k/fpu/feupdateenv.c
+++ b/sysdeps/m68k/fpu/feupdateenv.c
@@ -1,5 +1,5 @@
 /* Install given floating-point environment and raise 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 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/fgetexcptflg.c b/sysdeps/m68k/fpu/fgetexcptflg.c
index 0ae51b52cb..86332baf71 100644
--- a/sysdeps/m68k/fpu/fgetexcptflg.c
+++ b/sysdeps/m68k/fpu/fgetexcptflg.c
@@ -1,5 +1,5 @@
 /* Store current representation for 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 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/fsetexcptflg.c b/sysdeps/m68k/fpu/fsetexcptflg.c
index 45c0b2dfa3..6a061360ca 100644
--- a/sysdeps/m68k/fpu/fsetexcptflg.c
+++ b/sysdeps/m68k/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.
    Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
 
diff --git a/sysdeps/m68k/fpu/ftestexcept.c b/sysdeps/m68k/fpu/ftestexcept.c
index a197fabe09..70775563c8 100644
--- a/sysdeps/m68k/fpu/ftestexcept.c
+++ b/sysdeps/m68k/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.
    Contributed by Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>