Update copyright lines.
diff --git a/samples/api-python-client-doc/main.py b/samples/api-python-client-doc/main.py
index d0a9eef..19ed541 100755
--- a/samples/api-python-client-doc/main.py
+++ b/samples/api-python-client-doc/main.py
@@ -1,6 +1,6 @@
 #!/usr/bin/env python
 #
-# Copyright 2011 Google Inc.
+# Copyright 2014 Google Inc. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.