[gegl] tools/gegl-tester: update copyright

[Øyvind Kolås <ok src gnome org>]

commit b83c36a08d4e1b9355a91ef1ffb9d08cc7a500fb
Author: Øyvind Kolås <pippin gimp org>
Date:   Thu Mar 9 18:56:54 2017 +0100

    tools/gegl-tester: update copyright

 tools/gegl-tester.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)
---
diff --git a/tools/gegl-tester.c b/tools/gegl-tester.c
index 4f1a856..1df5a02 100644
--- a/tools/gegl-tester.c
+++ b/tools/gegl-tester.c
@@ -14,6 +14,7 @@
  * License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
  *
  * Copyright 2012 Ville Sokk <ville sokk gmail com>
+ *           2017 Øyvind Kolås <pippin gimp org>
  */
 
 #include <glib.h>