Enable checkstyle check for blocks without braces.

Enable the checkstyle rule to check for block statements
without curly braces and fix any violations it finds.

Change-Id: Id4c58cea26f0d9ce7ed78643a4943c042886a12d
diff --git a/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java b/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
index 15aed60..d3db080 100644
--- a/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
+++ b/src/main/java/net/onrc/onos/apps/forwarding/Forwarding.java
@@ -557,11 +557,13 @@
         for (Entry<String, IntentState> entry : value.entrySet()) {
             log.debug("path intent key {}, value {}", entry.getKey(), entry.getValue());
             PathIntent pathIntent = (PathIntent) intentMap.getIntent(entry.getKey());
-            if (pathIntent == null)
+            if (pathIntent == null) {
                 continue;
+            }
 
-            if (!(pathIntent.getParentIntent() instanceof ShortestPathIntent))
+            if (!(pathIntent.getParentIntent() instanceof ShortestPathIntent)) {
                 continue;
+            }
 
             IntentState state = entry.getValue();
             switch (state) {