possible fix for link discovery

Change-Id: Id52dce21e93f0ca4665b15d3b169dc6a8dba76b4
diff --git a/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java b/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
index 685ee9c..565ccb9 100644
--- a/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
+++ b/openflow/ctl/src/main/java/org/onlab/onos/openflow/controller/impl/OpenFlowControllerImpl.java
@@ -188,6 +188,7 @@
 
         @Override
         public boolean addConnectedSwitch(Dpid dpid, OpenFlowSwitch sw) {
+
             if (connectedSwitches.get(dpid) != null) {
                 log.error("Trying to add connectedSwitch but found a previous "
                         + "value for dpid: {}", dpid);