Fix checkstyle whitespace issues - WHITESPACE ONLY

Change-Id: Ic205c1afd639c6008d61d9de95cb764eeb6238ca
diff --git a/src/main/java/net/onrc/onos/core/linkdiscovery/ILinkDiscoveryListener.java b/src/main/java/net/onrc/onos/core/linkdiscovery/ILinkDiscoveryListener.java
index 53721d8..9b237c4 100644
--- a/src/main/java/net/onrc/onos/core/linkdiscovery/ILinkDiscoveryListener.java
+++ b/src/main/java/net/onrc/onos/core/linkdiscovery/ILinkDiscoveryListener.java
@@ -1,7 +1,7 @@
 /**
  *    Copyright 2011, Big Switch Networks, Inc. 
  *    Originally created by David Erickson, Stanford University
- * 
+ *
  *    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
  *    a copy of the License at
@@ -17,7 +17,7 @@
 
 package net.onrc.onos.core.linkdiscovery;
 
-public interface ILinkDiscoveryListener extends ILinkDiscovery{
+public interface ILinkDiscoveryListener extends ILinkDiscovery {
 
     public void linkDiscoveryUpdate(LDUpdate update);
 }