restoring the modified date as well

browser/locales/en-US/chrome/help/prefs.xhtml

@@ -554,7 +554,7 @@ Contributors:
     you can do so here.  You will most likely only need to change this if your
     Internet environment requires it.</p>
 
-<div class="contentsBox"><em>14 October 2004</em></div>
+<div class="contentsBox"><em>23 November 2004</em></div>
 <p>Copyright &copy; 2003-2004 Contributors to the Mozilla Help Viewer Project.</p>
 </body>
 </html>