TOOL bug fix for attribute name and operation type generation

Change-Id: I63eb679d69378e422a329569d1021241af5aeb26
diff --git a/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/UnionListener.java b/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/UnionListener.java
index 32eb4d9..63a09c5 100644
--- a/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/UnionListener.java
+++ b/plugin/src/main/java/org/onosproject/yangutils/parser/impl/listeners/UnionListener.java
@@ -167,7 +167,7 @@
      * @param ctx      context object of the grammar rule
      */
     public static void processUnionExit(TreeWalkListener listener,
-                                       GeneratedYangParser.UnionSpecificationContext ctx) {
+                                        GeneratedYangParser.UnionSpecificationContext ctx) {
 
         // Check for stack to be non empty.
         checkStackIsNotEmpty(listener, MISSING_HOLDER, UNION_DATA, "", EXIT);