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/topology/TopologyManager.java b/src/main/java/net/onrc/onos/core/topology/TopologyManager.java
index 0dac65f..8e0a4e6 100644
--- a/src/main/java/net/onrc/onos/core/topology/TopologyManager.java
+++ b/src/main/java/net/onrc/onos/core/topology/TopologyManager.java
@@ -1225,7 +1225,9 @@
          for (KVDevice d : KVDevice.getAllDevices()) {
               DeviceEvent devEvent = new DeviceEvent(MACAddress.valueOf(d.getMac()));
               for (byte[] portId : d.getAllPortIds()) {
-                  devEvent.addAttachmentPoint(new SwitchPort(KVPort.getDpidFromKey(portId), KVPort.getNumberFromKey(portId)));
+                  devEvent.addAttachmentPoint(
+                          new SwitchPort(KVPort.getDpidFromKey(portId),
+                                  KVPort.getNumberFromKey(portId)));
               }
          }