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

14 files changed, 14 insertions, 14 deletions

diff --git a/sysdeps/arc/fpu/fclrexcpt.c b/sysdeps/arc/fpu/fclrexcpt.c
index 7653d99a00..dfa9e59510 100644
--- a/sysdeps/arc/fpu/fclrexcpt.c
+++ b/sysdeps/arc/fpu/fclrexcpt.c
@@ -1,5 +1,5 @@
 /* Clear given exceptions in current floating-point environment.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fegetenv.c b/sysdeps/arc/fpu/fegetenv.c
index bbb3b477b4..e085825a63 100644
--- a/sysdeps/arc/fpu/fegetenv.c
+++ b/sysdeps/arc/fpu/fegetenv.c
@@ -1,5 +1,5 @@
 /* Store current floating-point environment.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fegetmode.c b/sysdeps/arc/fpu/fegetmode.c
index f02c9119f2..e3ffa4873f 100644
--- a/sysdeps/arc/fpu/fegetmode.c
+++ b/sysdeps/arc/fpu/fegetmode.c
@@ -1,5 +1,5 @@
 /* Store current floating-point control modes.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fegetround.c b/sysdeps/arc/fpu/fegetround.c
index c5496bcbf7..517ee92d6a 100644
--- a/sysdeps/arc/fpu/fegetround.c
+++ b/sysdeps/arc/fpu/fegetround.c
@@ -1,5 +1,5 @@
 /* Return current rounding direction.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/feholdexcpt.c b/sysdeps/arc/fpu/feholdexcpt.c
index 59527ee25a..93094dccee 100644
--- a/sysdeps/arc/fpu/feholdexcpt.c
+++ b/sysdeps/arc/fpu/feholdexcpt.c
@@ -1,5 +1,5 @@
 /* Store current floating-point environment and clear exceptions.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fesetenv.c b/sysdeps/arc/fpu/fesetenv.c
index 4ef858fc10..916a874286 100644
--- a/sysdeps/arc/fpu/fesetenv.c
+++ b/sysdeps/arc/fpu/fesetenv.c
@@ -1,5 +1,5 @@
 /* Install given floating-point environment (doesnot raise exceptions).
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fesetexcept.c b/sysdeps/arc/fpu/fesetexcept.c
index 77517d0b25..9901d11b92 100644
--- a/sysdeps/arc/fpu/fesetexcept.c
+++ b/sysdeps/arc/fpu/fesetexcept.c
@@ -1,5 +1,5 @@
 /* Set given exception flags.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fesetmode.c b/sysdeps/arc/fpu/fesetmode.c
index c4ea02d8d1..a54c746ef5 100644
--- a/sysdeps/arc/fpu/fesetmode.c
+++ b/sysdeps/arc/fpu/fesetmode.c
@@ -1,5 +1,5 @@
 /* Install given floating-point control modes.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fesetround.c b/sysdeps/arc/fpu/fesetround.c
index 701c0b2dcb..c090803a82 100644
--- a/sysdeps/arc/fpu/fesetround.c
+++ b/sysdeps/arc/fpu/fesetround.c
@@ -1,5 +1,5 @@
 /* Set current rounding direction.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/feupdateenv.c b/sysdeps/arc/fpu/feupdateenv.c
index c63aefb254..49e7bf308f 100644
--- a/sysdeps/arc/fpu/feupdateenv.c
+++ b/sysdeps/arc/fpu/feupdateenv.c
@@ -1,6 +1,6 @@
 /* Install given floating-point environment and raise exceptions,
    without clearing currently raised exceptions.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fgetexcptflg.c b/sysdeps/arc/fpu/fgetexcptflg.c
index a816121fd9..8c137ee241 100644
--- a/sysdeps/arc/fpu/fgetexcptflg.c
+++ b/sysdeps/arc/fpu/fgetexcptflg.c
@@ -1,5 +1,5 @@
 /* Store current representation for exceptions, ARC version.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fraiseexcpt.c b/sysdeps/arc/fpu/fraiseexcpt.c
index 067c060778..8988fcc8f7 100644
--- a/sysdeps/arc/fpu/fraiseexcpt.c
+++ b/sysdeps/arc/fpu/fraiseexcpt.c
@@ -1,5 +1,5 @@
 /* Raise given exceptions.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/fsetexcptflg.c b/sysdeps/arc/fpu/fsetexcptflg.c
index f9e08d5044..b77cd0c3de 100644
--- a/sysdeps/arc/fpu/fsetexcptflg.c
+++ b/sysdeps/arc/fpu/fsetexcptflg.c
@@ -1,5 +1,5 @@
 /* Set floating-point environment exception handling, ARC version.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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/arc/fpu/ftestexcept.c b/sysdeps/arc/fpu/ftestexcept.c
index bb8ed27ab2..7f3edd2f00 100644
--- a/sysdeps/arc/fpu/ftestexcept.c
+++ b/sysdeps/arc/fpu/ftestexcept.c
@@ -1,5 +1,5 @@
 /* Test exception in current environment.
-   Copyright (C) 2020 Free Software Foundation, Inc.
+   Copyright (C) 2020-2021 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