Use the same coding style in toString() implementations

Change-Id: I116eb140d92b385d36efe120c42cd2fb3efac760
diff --git a/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PcepObjectHeader.java b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PcepObjectHeader.java
index ab3d396..93d225c 100644
--- a/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PcepObjectHeader.java
+++ b/pcep/pcepio/src/main/java/org/onosproject/pcepio/types/PcepObjectHeader.java
@@ -213,8 +213,12 @@
 
     @Override
     public String toString() {
-        return MoreObjects.toStringHelper(getClass()).add("ObjectClass", objClass).add("ObjectType", objType)
-                .add("ObjectLength", objLen).add("PFlag", (bPFlag) ? 1 : 0).add("IFlag", (bIFlag) ? 1 : 0)
+        return MoreObjects.toStringHelper(getClass())
+                .add("ObjectClass", objClass)
+                .add("ObjectType", objType)
+                .add("ObjectLength", objLen)
+                .add("PFlag", (bPFlag) ? 1 : 0)
+                .add("IFlag", (bIFlag) ? 1 : 0)
                 .toString();
     }
 }