Cleaned up a slew of Javadoc errors in preparation for switch over to Java 8.
diff --git a/openflow/api/src/main/java/org/onlab/onos/openflow/controller/driver/OpenFlowSwitchDriver.java b/openflow/api/src/main/java/org/onlab/onos/openflow/controller/driver/OpenFlowSwitchDriver.java
index 4daeecc..2647fed 100644
--- a/openflow/api/src/main/java/org/onlab/onos/openflow/controller/driver/OpenFlowSwitchDriver.java
+++ b/openflow/api/src/main/java/org/onlab/onos/openflow/controller/driver/OpenFlowSwitchDriver.java
@@ -71,7 +71,7 @@
     public void handleNiciraRole(OFMessage m) throws SwitchStateException;
 
     /**
-     * Handle OF 1.x (where x > 0) role messages.
+     * Handle OF 1.x (where x > 0) role messages.
      * @param m the role message to handle
      * @throws SwitchStateException if the message received was
      *  not a nicira role or was malformed.