Updating Copyright line to Open Networking Foundation

Change-Id: Icba96d7f39a065b53f34a6aeb71afd1f7d51f774
diff --git a/core/api/src/test/java/org/onosproject/cluster/ClusterEventTest.java b/core/api/src/test/java/org/onosproject/cluster/ClusterEventTest.java
index 1351769..8995062 100644
--- a/core/api/src/test/java/org/onosproject/cluster/ClusterEventTest.java
+++ b/core/api/src/test/java/org/onosproject/cluster/ClusterEventTest.java
@@ -1,5 +1,5 @@
 /*
- * Copyright 2017-present Open Networking Laboratory
+ * Copyright 2017-present Open Networking Foundation
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.