Enforced Checkstyle rule to limit line length.

Maximum line length is 120 right now (but we might want to think about
reducing it further in the future).

I've fixed the existing lines we had that violated the rule.

Change-Id: I077d0c427d35e1c5033aab45ed3fbbbf1d106e89
diff --git a/src/main/java/net/onrc/onos/core/flowprogrammer/FlowPusher.java b/src/main/java/net/onrc/onos/core/flowprogrammer/FlowPusher.java
index fb7203b..1bf9ee6 100644
--- a/src/main/java/net/onrc/onos/core/flowprogrammer/FlowPusher.java
+++ b/src/main/java/net/onrc/onos/core/flowprogrammer/FlowPusher.java
@@ -18,8 +18,6 @@
 import java.util.concurrent.locks.Lock;
 import java.util.concurrent.locks.ReentrantLock;
 
-import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
-
 import net.floodlightcontroller.core.FloodlightContext;
 import net.floodlightcontroller.core.IFloodlightProviderService;
 import net.floodlightcontroller.core.IOFMessageListener;
@@ -72,6 +70,8 @@
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
+
 /**
  * FlowPusher is a implementation of FlowPusherService.
  * FlowPusher assigns one message queue instance for each one switch.
@@ -956,7 +956,8 @@
         }
 
         if (log.isTraceEnabled()) {
-            log.trace("Installing flow entry {} into switch DPID: {} flowEntryId: {} srcMac: {} dstMac: {} inPort: {} outPort: {}"
+            log.trace("Installing flow entry {} into switch DPID: {} " +
+                    "flowEntryId: {} srcMac: {} dstMac: {} inPort: {} outPort: {}"
                     , flowEntry.flowEntryUserState()
                     , sw.getStringId()
                     , flowEntry.flowEntryId()