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/Intent.java b/src/main/java/net/onrc/onos/core/intent/Intent.java
index a8a06b0..27067b3 100644
--- a/src/main/java/net/onrc/onos/core/intent/Intent.java
+++ b/src/main/java/net/onrc/onos/core/intent/Intent.java
@@ -82,16 +82,20 @@
 
     @Override
     public boolean equals(Object obj) {
-        if (this == obj)
+        if (this == obj) {
             return true;
-        if ((obj == null) || (getClass() != obj.getClass()))
+        }
+        if ((obj == null) || (getClass() != obj.getClass())) {
             return false;
+        }
         Intent other = (Intent) obj;
         if (id == null) {
-            if (other.id != null)
+            if (other.id != null) {
                 return false;
-        } else if (!id.equals(other.id))
+            }
+        } else if (!id.equals(other.id)) {
             return false;
+        }
         return true;
     }