update stale link to Sun javadocs.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@278327 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/CoreTasks/tstamp.html

@@ -65,7 +65,7 @@ The format element also allows offsets to be applied to the time to generate dif
   </tr>
   <tr>
     <td valign="top">timezone</td>
-    <td valign="top">The timezone to use for displaying time. The values are as defined by the Java <a href="http://java.sun.com/products/jdk/1.2/docs/api/java/util/TimeZone.html">TimeZone</a> class.</td>
+    <td valign="top">The timezone to use for displaying time. The values are as defined by the Java <a href="http://java.sun.com/j2se/1.4.2/docs/api/java/util/TimeZone.html">TimeZone</a> class.</td>
     <td align="center" valign="top">No</td>
   </tr>
   <tr>