[ONOS-4636]YANG Grouping linking bug fix + YANG Code review comment fix

Change-Id: I68ee8dd08266a02593e217cef1a9bb010037d673
diff --git a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/PatternRestrictionListener.java b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/PatternRestrictionListener.java
index 4f0ce8e..bd65855 100644
--- a/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/PatternRestrictionListener.java
+++ b/utils/yangutils/src/main/java/org/onosproject/yangutils/parser/impl/listeners/PatternRestrictionListener.java
@@ -151,7 +151,7 @@
      * @param ctx      context object of the grammar rule
      */
     public static void processPatternRestrictionExit(TreeWalkListener listener,
-                                                     GeneratedYangParser.PatternStatementContext ctx) {
+                                                    GeneratedYangParser.PatternStatementContext ctx) {
 
         // Check for stack to be non empty.
         checkStackIsNotEmpty(listener, MISSING_HOLDER, PATTERN_DATA, ctx.string().getText(), EXIT);