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

19 files changed, 19 insertions, 19 deletions

diff --git a/crypt/Makefile b/crypt/Makefile
index 6311f0c..219af60 100644
--- a/crypt/Makefile
+++ b/crypt/Makefile
@@ -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.
 
 # The GNU C Library is free software; you can redistribute it and/or
diff --git a/crypt/badsalttest.c b/crypt/badsalttest.c
index 110f9fc..1cd8926 100644
--- a/crypt/badsalttest.c
+++ b/crypt/badsalttest.c
@@ -1,5 +1,5 @@
 /* Test program for bad DES salt detection in crypt.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/crypt/crypt-entry.c b/crypt/crypt-entry.c
index 502b584..a362b51 100644
--- a/crypt/crypt-entry.c
+++ b/crypt/crypt-entry.c
@@ -1,7 +1,7 @@
 /*
  * UFC-crypt: ultra fast crypt(3) implementation
  *
- * Copyright (C) 1991-2020 Free Software Foundation, Inc.
+ * Copyright (C) 1991-2021 Free Software Foundation, Inc.
  *
  * The GNU C Library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/crypt/crypt-private.h b/crypt/crypt-private.h
index cf82758..dd66b74 100644
--- a/crypt/crypt-private.h
+++ b/crypt/crypt-private.h
@@ -1,7 +1,7 @@
 /*
  * UFC-crypt: ultra fast crypt(3) implementation
  *
- * Copyright (C) 1991-2020 Free Software Foundation, Inc.
+ * Copyright (C) 1991-2021 Free Software Foundation, Inc.
  *
  * The GNU C Library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/crypt/crypt.c b/crypt/crypt.c
index 1400cd2..49eb76d 100644
--- a/crypt/crypt.c
+++ b/crypt/crypt.c
@@ -1,7 +1,7 @@
 /*
  * UFC-crypt: ultra fast crypt(3) implementation
  *
- * Copyright (C) 1991-2020 Free Software Foundation, Inc.
+ * Copyright (C) 1991-2021 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/crypt/crypt.h b/crypt/crypt.h
index ca8ad45..0635ef0 100644
--- a/crypt/crypt.h
+++ b/crypt/crypt.h
@@ -1,7 +1,7 @@
 /*
  * UFC-crypt: ultra fast crypt(3) implementation
  *
- * Copyright (C) 1991-2020 Free Software Foundation, Inc.
+ * Copyright (C) 1991-2021 Free Software Foundation, Inc.
  *
  * The GNU C Library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/crypt/crypt_util.c b/crypt/crypt_util.c
index 4b2f0a8..c9cf9ba 100644
--- a/crypt/crypt_util.c
+++ b/crypt/crypt_util.c
@@ -1,7 +1,7 @@
 /*
  * UFC-crypt: ultra fast crypt(3) implementation
  *
- * Copyright (C) 1991-2020 Free Software Foundation, Inc.
+ * Copyright (C) 1991-2021 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public
diff --git a/crypt/md5-crypt.c b/crypt/md5-crypt.c
index 8c715ef..ccc31b9 100644
--- a/crypt/md5-crypt.c
+++ b/crypt/md5-crypt.c
@@ -1,6 +1,6 @@
 /* One way encryption based on MD5 sum.
    Compatible with the behavior of MD5 crypt introduced in FreeBSD 2.0.
-   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/crypt/md5.c b/crypt/md5.c
index c74637c..f1aec9d 100644
--- a/crypt/md5.c
+++ b/crypt/md5.c
@@ -1,6 +1,6 @@
 /* Functions to compute MD5 message digest of files or memory blocks.
    according to the definition of MD5 in RFC 1321 from April 1992.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 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/crypt/md5.h b/crypt/md5.h
index 36f2d63..6a98143 100644
--- a/crypt/md5.h
+++ b/crypt/md5.h
@@ -1,6 +1,6 @@
 /* Declaration of functions and data types used for MD5 sum computing
    library functions.
-   Copyright (C) 1995-2020 Free Software Foundation, Inc.
+   Copyright (C) 1995-2021 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/crypt/md5test-giant.c b/crypt/md5test-giant.c
index c892b70..41a267a 100644
--- a/crypt/md5test-giant.c
+++ b/crypt/md5test-giant.c
@@ -1,5 +1,5 @@
 /* Testcase for https://sourceware.org/bugzilla/show_bug.cgi?id=14090.
-   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.
 
    This program is free software; you can redistribute it and/or modify
diff --git a/crypt/sha256-crypt.c b/crypt/sha256-crypt.c
index cefef17..639726c 100644
--- a/crypt/sha256-crypt.c
+++ b/crypt/sha256-crypt.c
@@ -1,5 +1,5 @@
 /* One way encryption based on SHA256 sum.
-   Copyright (C) 2007-2020 Free Software Foundation, Inc.
+   Copyright (C) 2007-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2007.
 
diff --git a/crypt/sha256.c b/crypt/sha256.c
index d60162c..ce28d14 100644
--- a/crypt/sha256.c
+++ b/crypt/sha256.c
@@ -1,6 +1,6 @@
 /* Functions to compute SHA256 message digest of files or memory blocks.
    according to the definition of SHA256 in FIPS 180-2.
-   Copyright (C) 2007-2020 Free Software Foundation, Inc.
+   Copyright (C) 2007-2021 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/crypt/sha256.h b/crypt/sha256.h
index 05ccb38..8ec676a 100644
--- a/crypt/sha256.h
+++ b/crypt/sha256.h
@@ -1,6 +1,6 @@
 /* Declaration of functions and data types used for SHA256 sum computing
    library functions.
-   Copyright (C) 2007-2020 Free Software Foundation, Inc.
+   Copyright (C) 2007-2021 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/crypt/sha512-crypt.c b/crypt/sha512-crypt.c
index a1878c4..1ebe010 100644
--- a/crypt/sha512-crypt.c
+++ b/crypt/sha512-crypt.c
@@ -1,5 +1,5 @@
 /* One way encryption based on SHA512 sum.
-   Copyright (C) 2007-2020 Free Software Foundation, Inc.
+   Copyright (C) 2007-2021 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2007.
 
diff --git a/crypt/sha512.c b/crypt/sha512.c
index aeced88..825ec71 100644
--- a/crypt/sha512.c
+++ b/crypt/sha512.c
@@ -1,6 +1,6 @@
 /* Functions to compute SHA512 message digest of files or memory blocks.
    according to the definition of SHA512 in FIPS 180-2.
-   Copyright (C) 2007-2020 Free Software Foundation, Inc.
+   Copyright (C) 2007-2021 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/crypt/sha512.h b/crypt/sha512.h
index edb9380..32e41f6 100644
--- a/crypt/sha512.h
+++ b/crypt/sha512.h
@@ -1,6 +1,6 @@
 /* Declaration of functions and data types used for SHA512 sum computing
    library functions.
-   Copyright (C) 2007-2020 Free Software Foundation, Inc.
+   Copyright (C) 2007-2021 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/crypt/ufc-crypt.h b/crypt/ufc-crypt.h
index ca8a5e7..4941b2b 100644
--- a/crypt/ufc-crypt.h
+++ b/crypt/ufc-crypt.h
@@ -1,5 +1,5 @@
 /* Types for UFC-crypt.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/crypt/ufc.c b/crypt/ufc.c
index 80752a9..171621e 100644
--- a/crypt/ufc.c
+++ b/crypt/ufc.c
@@ -1,7 +1,7 @@
 /*
  * UFC-crypt: ultra fast crypt(3) implementation
  *
- * Copyright (C) 1991-2020 Free Software Foundation, Inc.
+ * Copyright (C) 1991-2021 Free Software Foundation, Inc.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Lesser General Public