making one symbol a keyword

sql/sql_yacc.yy

@@ -3362,6 +3362,7 @@ keyword:
 	| MASTER_LOG_POS_SYM	{}
 	| MASTER_USER_SYM	{}
 	| MASTER_PASSWORD_SYM	{}
+	| MASTER_SERVER_ID_SYM  {}
 	| MASTER_CONNECT_RETRY_SYM	{}
 	| MAX_CONNECTIONS_PER_HOUR       {}
 	| MAX_QUERIES_PER_HOUR  {}