Follow up changes to es5.d.ts

Author: navya9singh

src/lib/es5.d.ts

@@ -430,7 +430,7 @@ interface String {
     /**
      * Replaces text in a string, using a regular expression or search string.
      * @param searchValue A string to search for.
-     * @param replaceValue A string containing the text to replace for every successful match of searchValue in this string.
+     * @param replaceValue A string containing the text to replace. When the searchvalue is a string, only the first match is replaced. If the searchValue is a Regexp, all matches are replaced if the g flag is set. Otherwise only the first one is.
      */
     replace(searchValue: string | RegExp, replaceValue: string): string;