gitk: Update year

Signed-off-by: YOKOTA Hiroshi <yokota@netlab.cs.tsukuba.ac.jp>

YOKOTA Hiroshi committed Oct 24, 2015 at 23:07 UTC 0ded623a5f42f442a13fb665d115be2964f80f3a
1 file changed +1 -1
po/ja.po
+1 -1
@@ -1,5 +1,5 @@
1 # Japanese translations for gitk package.
2 -# Copyright (C) 2005-2009 Paul Mackerras
2 +# Copyright (C) 2005-2015 Paul Mackerras
3 # This file is distributed under the same license as the gitk package.
4 #
5 # YOKOTA Hiroshi <yokota@netlab.cs.tsukuba.ac.jp>, 2015.