Vertical bar removed from syntax of vararg table

The syntax 'function foo (a, b, ...arg)' is already used by JavaScript
for this same semantics, so it seems natural to use the same notation in
Lua.

lparser.c

@@ -1079,8 +1079,8 @@ static void parlist (LexState *ls) {
         }
         case TK_DOTS: {
           varargk |= PF_ISVARARG;
-          luaX_next(ls);
-          if (testnext(ls, '|')) {
+          luaX_next(ls);  /* skip '...' */
+          if (ls->t.token == TK_NAME) {
             new_varkind(ls, str_checkname(ls), RDKVAVAR);
             varargk |= PF_VAVAR;
           }