[css2] minor fix

--HG--
extra : convert_revision : svn%3A73dc7c4b-06e6-40f3-b4f7-9ed1dbc14bfc/trunk%40497

Author: howcom

css2/properties/properties.db

@@ -171,7 +171,7 @@ allowed on <'font-size'> and <'line-height'> ;; visual
    0;; block-level elements;; yes;; refer to parent element's width;; visual
 */
 
-/* text-shadow;; none | [<color> || <length> <length> <length>? , [<color> || <length> <length> <length>?] ;; none;; all;; No, but see clarification below;; N/A;; visual*/
+/* text-shadow;; none | [<color> || <length> <length> <length>? ,]* [<color> || <length> <length> <length>?] ;; none;; all;; No, but see clarification below;; N/A;; visual*/
 
 /* text-align;; left | right | center | justify;;
    depends on user agent;;