Fix copyrights
diff --git a/test/cpp/qps/usage_timer.cc b/test/cpp/qps/usage_timer.cc
index 5a913d4..ee64537 100644
--- a/test/cpp/qps/usage_timer.cc
+++ b/test/cpp/qps/usage_timer.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without