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

20 files changed, 20 insertions, 20 deletions

diff --git a/sysdeps/csky/fpu/fclrexcpt.c b/sysdeps/csky/fpu/fclrexcpt.c
index 01705d5..9424d1d 100644
--- a/sysdeps/csky/fpu/fclrexcpt.c
+++ b/sysdeps/csky/fpu/fclrexcpt.c
@@ -1,5 +1,5 @@
 /* Clear given exceptions in current floating-point environment.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fedisblxcpt.c b/sysdeps/csky/fpu/fedisblxcpt.c
index 11480d8..1c15e1f 100644
--- a/sysdeps/csky/fpu/fedisblxcpt.c
+++ b/sysdeps/csky/fpu/fedisblxcpt.c
@@ -1,5 +1,5 @@
 /* Disable floating-point exceptions.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/feenablxcpt.c b/sysdeps/csky/fpu/feenablxcpt.c
index 635c029..2f2b520 100644
--- a/sysdeps/csky/fpu/feenablxcpt.c
+++ b/sysdeps/csky/fpu/feenablxcpt.c
@@ -1,5 +1,5 @@
 /* Enable floating-point exceptions.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fegetenv.c b/sysdeps/csky/fpu/fegetenv.c
index afed1c3..ceba5f1 100644
--- a/sysdeps/csky/fpu/fegetenv.c
+++ b/sysdeps/csky/fpu/fegetenv.c
@@ -1,5 +1,5 @@
 /* Store current floating-point environment.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fegetexcept.c b/sysdeps/csky/fpu/fegetexcept.c
index f5fe456..410979f 100644
--- a/sysdeps/csky/fpu/fegetexcept.c
+++ b/sysdeps/csky/fpu/fegetexcept.c
@@ -1,5 +1,5 @@
 /* Get enabled floating-point exceptions.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fegetmode.c b/sysdeps/csky/fpu/fegetmode.c
index 189e2ce..24afccc 100644
--- a/sysdeps/csky/fpu/fegetmode.c
+++ b/sysdeps/csky/fpu/fegetmode.c
@@ -1,5 +1,5 @@
 /* Store current floating-point control modes.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fegetround.c b/sysdeps/csky/fpu/fegetround.c
index 215deb3..4b1851a 100644
--- a/sysdeps/csky/fpu/fegetround.c
+++ b/sysdeps/csky/fpu/fegetround.c
@@ -1,5 +1,5 @@
 /* Return current rounding direction.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/feholdexcpt.c b/sysdeps/csky/fpu/feholdexcpt.c
index db51f9f..a1a47f3 100644
--- a/sysdeps/csky/fpu/feholdexcpt.c
+++ b/sysdeps/csky/fpu/feholdexcpt.c
@@ -1,5 +1,5 @@
 /* Store current floating-point environment and clear exceptions.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fenv_libc.h b/sysdeps/csky/fpu/fenv_libc.h
index 7d6c93e..5d0894e 100644
--- a/sysdeps/csky/fpu/fenv_libc.h
+++ b/sysdeps/csky/fpu/fenv_libc.h
@@ -1,5 +1,5 @@
 /* fpu registers environment.  C-SKY version.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fenv_private.h b/sysdeps/csky/fpu/fenv_private.h
index d298770..81ca6ef 100644
--- a/sysdeps/csky/fpu/fenv_private.h
+++ b/sysdeps/csky/fpu/fenv_private.h
@@ -1,5 +1,5 @@
 /* Private floating point rounding and exceptions handling.  C-SKY version.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fesetenv.c b/sysdeps/csky/fpu/fesetenv.c
index cc5aa1a..fb4bddb 100644
--- a/sysdeps/csky/fpu/fesetenv.c
+++ b/sysdeps/csky/fpu/fesetenv.c
@@ -1,5 +1,5 @@
 /* Install given floating-point environment.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fesetexcept.c b/sysdeps/csky/fpu/fesetexcept.c
index 56dcb49..fc4fea8 100644
--- a/sysdeps/csky/fpu/fesetexcept.c
+++ b/sysdeps/csky/fpu/fesetexcept.c
@@ -1,5 +1,5 @@
 /* Set given exception flags.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fesetmode.c b/sysdeps/csky/fpu/fesetmode.c
index acdba6e..0a0062c 100644
--- a/sysdeps/csky/fpu/fesetmode.c
+++ b/sysdeps/csky/fpu/fesetmode.c
@@ -1,5 +1,5 @@
 /* Install given floating-point control modes.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fesetround.c b/sysdeps/csky/fpu/fesetround.c
index 8969b7d..c30df4a 100644
--- a/sysdeps/csky/fpu/fesetround.c
+++ b/sysdeps/csky/fpu/fesetround.c
@@ -1,5 +1,5 @@
 /* Set current rounding direction.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/feupdateenv.c b/sysdeps/csky/fpu/feupdateenv.c
index c75082d..5ade7aa 100644
--- a/sysdeps/csky/fpu/feupdateenv.c
+++ b/sysdeps/csky/fpu/feupdateenv.c
@@ -1,5 +1,5 @@
 /* Install given floating-point environment and raise exceptions.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fgetexcptflg.c b/sysdeps/csky/fpu/fgetexcptflg.c
index c4b6268..5b81667 100644
--- a/sysdeps/csky/fpu/fgetexcptflg.c
+++ b/sysdeps/csky/fpu/fgetexcptflg.c
@@ -1,5 +1,5 @@
 /* Store current representation for exceptions.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fix-fp-int-convert-overflow.h b/sysdeps/csky/fpu/fix-fp-int-convert-overflow.h
index 29a09d3..8a23e0d 100644
--- a/sysdeps/csky/fpu/fix-fp-int-convert-overflow.h
+++ b/sysdeps/csky/fpu/fix-fp-int-convert-overflow.h
@@ -1,5 +1,5 @@
 /* Fix for conversion of floating point to integer overflow.  C-SKY version.
-   Copyright (C) 2015-2020 Free Software Foundation, Inc.
+   Copyright (C) 2015-2021 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/csky/fpu/fraiseexcpt.c b/sysdeps/csky/fpu/fraiseexcpt.c
index cc94808..c3e8d95 100644
--- a/sysdeps/csky/fpu/fraiseexcpt.c
+++ b/sysdeps/csky/fpu/fraiseexcpt.c
@@ -1,5 +1,5 @@
 /* Raise given exceptions.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/fsetexcptflg.c b/sysdeps/csky/fpu/fsetexcptflg.c
index f6c6dc7..2c55471 100644
--- a/sysdeps/csky/fpu/fsetexcptflg.c
+++ b/sysdeps/csky/fpu/fsetexcptflg.c
@@ -1,5 +1,5 @@
 /* Set floating-point environment exception handling.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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/csky/fpu/ftestexcept.c b/sysdeps/csky/fpu/ftestexcept.c
index dc23c8b..c83aef0 100644
--- a/sysdeps/csky/fpu/ftestexcept.c
+++ b/sysdeps/csky/fpu/ftestexcept.c
@@ -1,5 +1,5 @@
 /* Test exception in current environment.
-   Copyright (C) 2018-2020 Free Software Foundation, Inc.
+   Copyright (C) 2018-2021 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