Fix copyright date in test_nodepool
This file was recently added (by me) with the wrong copyright date.
Change-Id: I39ed8ff1b29c48d2079338691a00ef6b4153b27b
diff --git a/tests/test_nodepool.py b/tests/test_nodepool.py
index 78d85aa..f422de7 100644
--- a/tests/test_nodepool.py
+++ b/tests/test_nodepool.py
@@ -1,4 +1,4 @@
-# Copyright 2015 Red Hat, Inc.
+# Copyright 2017 Red Hat, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain