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/packet/ARP.java b/src/main/java/net/onrc/onos/core/packet/ARP.java
index ec62d40..ae49c4b 100644
--- a/src/main/java/net/onrc/onos/core/packet/ARP.java
+++ b/src/main/java/net/onrc/onos/core/packet/ARP.java
@@ -266,31 +266,43 @@
      */
     @Override
     public boolean equals(Object obj) {
-        if (this == obj)
+        if (this == obj) {
             return true;
-        if (!super.equals(obj))
+        }
+        if (!super.equals(obj)) {
             return false;
-        if (!(obj instanceof ARP))
+        }
+        if (!(obj instanceof ARP)) {
             return false;
+        }
         ARP other = (ARP) obj;
-        if (hardwareAddressLength != other.hardwareAddressLength)
+        if (hardwareAddressLength != other.hardwareAddressLength) {
             return false;
-        if (hardwareType != other.hardwareType)
+        }
+        if (hardwareType != other.hardwareType) {
             return false;
-        if (opCode != other.opCode)
+        }
+        if (opCode != other.opCode) {
             return false;
-        if (protocolAddressLength != other.protocolAddressLength)
+        }
+        if (protocolAddressLength != other.protocolAddressLength) {
             return false;
-        if (protocolType != other.protocolType)
+        }
+        if (protocolType != other.protocolType) {
             return false;
-        if (!Arrays.equals(senderHardwareAddress, other.senderHardwareAddress))
+        }
+        if (!Arrays.equals(senderHardwareAddress, other.senderHardwareAddress)) {
             return false;
-        if (!Arrays.equals(senderProtocolAddress, other.senderProtocolAddress))
+        }
+        if (!Arrays.equals(senderProtocolAddress, other.senderProtocolAddress)) {
             return false;
-        if (!Arrays.equals(targetHardwareAddress, other.targetHardwareAddress))
+        }
+        if (!Arrays.equals(targetHardwareAddress, other.targetHardwareAddress)) {
             return false;
-        if (!Arrays.equals(targetProtocolAddress, other.targetProtocolAddress))
+        }
+        if (!Arrays.equals(targetProtocolAddress, other.targetProtocolAddress)) {
             return false;
+        }
         return true;
     }