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

18 files changed, 18 insertions, 18 deletions

diff --git a/htl/tests/test-1.c b/htl/tests/test-1.c
index c277e7c..ec08df1 100644
--- a/htl/tests/test-1.c
+++ b/htl/tests/test-1.c
@@ -1,5 +1,5 @@
 /* Test mutexes.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-10.c b/htl/tests/test-10.c
index f3e5644..ee4e9fe 100644
--- a/htl/tests/test-10.c
+++ b/htl/tests/test-10.c
@@ -1,5 +1,5 @@
 /* Test error checking mutexes.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-11.c b/htl/tests/test-11.c
index 6c3951a..441e0ef 100644
--- a/htl/tests/test-11.c
+++ b/htl/tests/test-11.c
@@ -1,5 +1,5 @@
 /* Test rwlocks.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-12.c b/htl/tests/test-12.c
index a5cb966..25bdd3f 100644
--- a/htl/tests/test-12.c
+++ b/htl/tests/test-12.c
@@ -1,5 +1,5 @@
 /* Test concurrency level.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-13.c b/htl/tests/test-13.c
index 9e78e27..8b8f399 100644
--- a/htl/tests/test-13.c
+++ b/htl/tests/test-13.c
@@ -1,5 +1,5 @@
 /* Test condition attributes and pthread_cond_timedwait.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-14.c b/htl/tests/test-14.c
index fff8fe9..b29cd52 100644
--- a/htl/tests/test-14.c
+++ b/htl/tests/test-14.c
@@ -1,5 +1,5 @@
 /* Test pthread_mutex_timedlock.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-15.c b/htl/tests/test-15.c
index bac3b74..7e50872 100644
--- a/htl/tests/test-15.c
+++ b/htl/tests/test-15.c
@@ -1,5 +1,5 @@
 /* Test pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-16.c b/htl/tests/test-16.c
index ed6de83..17f28ce 100644
--- a/htl/tests/test-16.c
+++ b/htl/tests/test-16.c
@@ -1,5 +1,5 @@
 /* Test pthread_kill.c.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-17.c b/htl/tests/test-17.c
index 0ecd367..52fe292 100644
--- a/htl/tests/test-17.c
+++ b/htl/tests/test-17.c
@@ -1,6 +1,6 @@
 /* Test that the key reuse inside libpthread does not cause thread
    specific values to persist.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-2.c b/htl/tests/test-2.c
index 11e0458..33bc17d 100644
--- a/htl/tests/test-2.c
+++ b/htl/tests/test-2.c
@@ -1,5 +1,5 @@
 /* Test detachability.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-3.c b/htl/tests/test-3.c
index 6bbf7a5..baa62c9 100644
--- a/htl/tests/test-3.c
+++ b/htl/tests/test-3.c
@@ -1,5 +1,5 @@
 /* Test the thread attribute get and set methods.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-4.c b/htl/tests/test-4.c
index 94fb65a..4e3f271 100644
--- a/htl/tests/test-4.c
+++ b/htl/tests/test-4.c
@@ -1,5 +1,5 @@
 /* Test the stack guard.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-5.c b/htl/tests/test-5.c
index cabbdfe..ff56125 100644
--- a/htl/tests/test-5.c
+++ b/htl/tests/test-5.c
@@ -1,5 +1,5 @@
 /* Test signals.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-6.c b/htl/tests/test-6.c
index fc13f6d..dc2c36b 100644
--- a/htl/tests/test-6.c
+++ b/htl/tests/test-6.c
@@ -1,5 +1,5 @@
 /* Test barriers.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-7.c b/htl/tests/test-7.c
index 2e4e9d6..4e79324 100644
--- a/htl/tests/test-7.c
+++ b/htl/tests/test-7.c
@@ -1,5 +1,5 @@
 /* Test Thread-Specific Data.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-8.c b/htl/tests/test-8.c
index d7e547e..b0453ab 100644
--- a/htl/tests/test-8.c
+++ b/htl/tests/test-8.c
@@ -1,5 +1,5 @@
 /* Test pthread_once.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-9.c b/htl/tests/test-9.c
index 5c3fe28..620b9f0 100644
--- a/htl/tests/test-9.c
+++ b/htl/tests/test-9.c
@@ -1,5 +1,5 @@
 /* Test recursive mutexes.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or
diff --git a/htl/tests/test-__pthread_destroy_specific-skip.c b/htl/tests/test-__pthread_destroy_specific-skip.c
index 6348f57..c985d42 100644
--- a/htl/tests/test-__pthread_destroy_specific-skip.c
+++ b/htl/tests/test-__pthread_destroy_specific-skip.c
@@ -1,6 +1,6 @@
 /* Check that __pthread_destroy_specific works correctly if it has to skip
    unused slots.
-   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.
 
    The GNU C Library is free software; you can redistribute it and/or