menuconfig: don't prepend CONFIG_ to symbols in help text

package/config/mconf.c

@@ -743,7 +743,7 @@ static void show_help(struct menu *menu)
 	if (menu_has_help(menu))
 	{
 		if (sym->name) {
-			str_printf(&help, "CONFIG_%s:\n\n", sym->name);
+			str_printf(&help, "%s:\n\n", sym->name);
 			str_append(&help, _(menu_get_help(menu)));
 			str_append(&help, "\n");
 		}