add new line at EOF

Change-Id: I9396405c4c81af64ad8f70cf685a9631b076a05b
diff --git a/core/net/src/test/java/org/onlab/onos/net/topology/impl/DefaultTopologyProviderTest.java b/core/net/src/test/java/org/onlab/onos/net/topology/impl/DefaultTopologyProviderTest.java
index 0556e1f..0055d82 100644
--- a/core/net/src/test/java/org/onlab/onos/net/topology/impl/DefaultTopologyProviderTest.java
+++ b/core/net/src/test/java/org/onlab/onos/net/topology/impl/DefaultTopologyProviderTest.java
@@ -157,4 +157,4 @@
             eventDispatcher.post(event);
         }
     }
-}
\ No newline at end of file
+}