drd: Update copyright notice

git-svn-id: svn://svn.valgrind.org/valgrind/trunk@13613 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/drd/drd_main.c b/drd/drd_main.c
index f3590f9..ccc1853 100644
--- a/drd/drd_main.c
+++ b/drd/drd_main.c
@@ -1,7 +1,7 @@
 /*
   This file is part of drd, a thread error detector.
 
-  Copyright (C) 2006-2012 Bart Van Assche <bvanassche@acm.org>.
+  Copyright (C) 2006-2013 Bart Van Assche <bvanassche@acm.org>.
 
   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License as
@@ -815,7 +815,7 @@
    VG_(details_name)            ("drd");
    VG_(details_version)         (NULL);
    VG_(details_description)     ("a thread error detector");
-   VG_(details_copyright_author)("Copyright (C) 2006-2012, and GNU GPL'd,"
+   VG_(details_copyright_author)("Copyright (C) 2006-2013, and GNU GPL'd,"
                                  " by Bart Van Assche.");
    VG_(details_bug_reports_to)  (VG_BUGS_TO);