parse.y: typo fix(tWORD_BEG -> tWORDS_BEG).

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@6348 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

parse.y

@@ -293,7 +293,7 @@ static void top_local_setup();
 %token tLBRACE_ARG	/* { */
 %token tSTAR		/* * */
 %token tAMPER		/* & */
-%token tSYMBEG tSTRING_BEG tXSTRING_BEG tREGEXP_BEG tWORD_BEG tQWORDS_BEG
+%token tSYMBEG tSTRING_BEG tXSTRING_BEG tREGEXP_BEG tWORDS_BEG tQWORDS_BEG
 %token tSTRING_DBEG tSTRING_DVAR tSTRING_END
 
 /*