The FSF now allows year range notation for copyright years.
See `6.5 Copyright Notices' from:
http://www.gnu.org/prep/maintain/html_node/Copyright-Notices.html
We comply with the FSF requirements for the use of range
notation by documenting the usage in our README.
+2011-10-20 Carlos O'Donell <carlos@codesourcery.com>
+
+ * README: Define copyright year range notation.
+
2011-10-20 Andreas Schwab <schwab@redhat.com>
[BZ #12892]
The GNU C Library is free software. See the file COPYING.LIB for copying
conditions, and LICENSES for notices about a few contributions that require
-these additional notices to be distributed.
+these additional notices to be distributed. License copyright years may be
+listed using range notation, e.g., 2000-2011, indicating that every year in
+the range, inclusive, is a copyrightable year that would otherwise be listed
+individually.