tests/examples/ fix script return value

The target update_diffs fails for me without the explicit ``exit 0``

diff --git a/tests/examples/update_diffs.sh b/tests/examples/update_diffs.sh
index 2f6375dc5f8078af495a049ffa55cb4fa3e8e2b4..beda7c364c560ac13fd54905588183cc8e1182a2 100755 (executable)
--- a/tests/examples/update_diffs.sh
+++ b/tests/examples/update_diffs.sh
@@ -28,3 +28,5 @@ for file in ${diff_files}; do
     exit 1
   fi
 done
+
+exit 0