Improving comments.

js/tests/ecma_3/RegExp/regress-209919.js

@@ -37,6 +37,7 @@
 * Date:    19 June 2003
 * SUMMARY: Testing regexp submatches with quantifiers
 *
+* See http://bugzilla.mozilla.org/show_bug.cgi?id=209919#c10
 * See http://bugzilla.mozilla.org/show_bug.cgi?id=209919#c11
 *
 */