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/core/intent/runtime/PathCalcRuntime.java b/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
index 0600fe3..5a6d2e9 100644
--- a/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
+++ b/src/main/java/net/onrc/onos/core/intent/runtime/PathCalcRuntime.java
@@ -101,9 +101,9 @@
                     // generate new path-intent ID
                     String oldPathIntentId = spIntent.getPathIntentId();
                     String newPathIntentId;
-                    if (oldPathIntentId == null)
+                    if (oldPathIntentId == null) {
                         newPathIntentId = PathIntent.createFirstId(spIntent.getId());
-                    else {
+                    } else {
                         newPathIntentId = PathIntent.createNextId(oldPathIntentId);
 
                         // Request removal of low-level intent if it exists.