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/pwd/Makefile b/pwd/Makefile
index 09e60f8e9c..825a117f2f 100644
--- a/pwd/Makefile
+++ b/pwd/Makefile
@@ -1,4 +1,4 @@
-# Copyright (C) 1991-2020 Free Software Foundation, Inc.
+# Copyright (C) 1991-2021 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/pwd/fgetpwent.c b/pwd/fgetpwent.c
index 23aa08869e..8d825f69d0 100644
--- a/pwd/fgetpwent.c
+++ b/pwd/fgetpwent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 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/pwd/fgetpwent_r.c b/pwd/fgetpwent_r.c
index 0a2e4a55e2..63fa483429 100644
--- a/pwd/fgetpwent_r.c
+++ b/pwd/fgetpwent_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 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/pwd/getpw.c b/pwd/getpw.c
index 84cdba7a76..d0c1662c67 100644
--- a/pwd/getpw.c
+++ b/pwd/getpw.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 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/pwd/getpwent.c b/pwd/getpwent.c
index 1e8d45a179..9ca856c09a 100644
--- a/pwd/getpwent.c
+++ b/pwd/getpwent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
diff --git a/pwd/getpwent_r.c b/pwd/getpwent_r.c
index d7b8b15238..b959725890 100644
--- a/pwd/getpwent_r.c
+++ b/pwd/getpwent_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
diff --git a/pwd/getpwnam.c b/pwd/getpwnam.c
index c2417b3114..ea3e01b204 100644
--- a/pwd/getpwnam.c
+++ b/pwd/getpwnam.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
diff --git a/pwd/getpwnam_r.c b/pwd/getpwnam_r.c
index 3433965750..f98185fc9b 100644
--- a/pwd/getpwnam_r.c
+++ b/pwd/getpwnam_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
diff --git a/pwd/getpwuid.c b/pwd/getpwuid.c
index 1b28ea3fcf..b835590d3c 100644
--- a/pwd/getpwuid.c
+++ b/pwd/getpwuid.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
diff --git a/pwd/getpwuid_r.c b/pwd/getpwuid_r.c
index 6af0404d7d..a8e553a434 100644
--- a/pwd/getpwuid_r.c
+++ b/pwd/getpwuid_r.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1996-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1996-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@cygnus.com>, 1996.
 
diff --git a/pwd/putpwent.c b/pwd/putpwent.c
index baf312a6fe..8e3230e804 100644
--- a/pwd/putpwent.c
+++ b/pwd/putpwent.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 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/pwd/pwd.h b/pwd/pwd.h
index bbc29479cd..c2ddce2b2d 100644
--- a/pwd/pwd.h
+++ b/pwd/pwd.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2021 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/pwd/tst-getpw.c b/pwd/tst-getpw.c
index 2486d3a070..9b8102ff49 100644
--- a/pwd/tst-getpw.c
+++ b/pwd/tst-getpw.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1999-2020 Free Software Foundation, Inc.
+/* Copyright (C) 1999-2021 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/pwd/tst-putpwent.c b/pwd/tst-putpwent.c
index 3b573c069a..13f6efb223 100644
--- a/pwd/tst-putpwent.c
+++ b/pwd/tst-putpwent.c
@@ -1,5 +1,5 @@
 /* Test for processing of invalid passwd entries.  [BZ #18724]
-   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