Update copyright dates, to include 2015.  No functional change.


git-svn-id: svn://svn.valgrind.org/valgrind/trunk@15577 a5019735-40e9-0310-863c-91ae7b9d1cf9
diff --git a/exp-dhat/dh_main.c b/exp-dhat/dh_main.c
index b9dfff0..e636ccb 100644
--- a/exp-dhat/dh_main.c
+++ b/exp-dhat/dh_main.c
@@ -7,7 +7,7 @@
    This file is part of DHAT, a Valgrind tool for profiling the
    heap usage of programs.
 
-   Copyright (C) 2010-2013 Mozilla Inc
+   Copyright (C) 2010-2015 Mozilla Inc
 
    This program is free software; you can redistribute it and/or
    modify it under the terms of the GNU General Public License as
@@ -1348,7 +1348,7 @@
    VG_(details_version)         (NULL);
    VG_(details_description)     ("a dynamic heap analysis tool");
    VG_(details_copyright_author)(
-      "Copyright (C) 2010-2013, and GNU GPL'd, by Mozilla Inc");
+      "Copyright (C) 2010-2015, and GNU GPL'd, by Mozilla Inc");
    VG_(details_bug_reports_to)  (VG_BUGS_TO);
 
    // Basic functions.