Module & Sub module grammar issue fix

Change-Id: Ia90b90510233195c5eab7402ebe790014ce137d1
diff --git a/src/main/resources/GeneratedYang.g4 b/src/main/resources/GeneratedYang.g4
index 9614b21..44b5c51 100644
--- a/src/main/resources/GeneratedYang.g4
+++ b/src/main/resources/GeneratedYang.g4
@@ -40,7 +40,7 @@
      *                       "}" optsep
      */
 
-    moduleStatement : MODULE_KEYWORD identifier LEFT_CURLY_BRACE moduleBody* RIGHT_CURLY_BRACE;
+    moduleStatement : MODULE_KEYWORD identifier LEFT_CURLY_BRACE moduleBody RIGHT_CURLY_BRACE;
 
     moduleBody : moduleHeaderStatement linkageStatements metaStatements revisionStatements bodyStatements;
 
@@ -210,7 +210,7 @@
      *                                 body-stmts
      *                             "}" optsep
      */
-    subModuleStatement : SUBMODULE_KEYWORD identifier LEFT_CURLY_BRACE submoduleBody* RIGHT_CURLY_BRACE;
+    subModuleStatement : SUBMODULE_KEYWORD identifier LEFT_CURLY_BRACE submoduleBody RIGHT_CURLY_BRACE;
     submoduleBody : submoduleHeaderStatement linkageStatements metaStatements revisionStatements bodyStatements;
 
     /** submodule-header-stmts =