Made html more symetric.

lib/python/App/undo.dtml

@@ -49,16 +49,16 @@
       </td>
     </tr>
     </dtml-in>
-    <tr><td colspan=2 align=center>
     <dtml-if expr="_.len(undoable_transactions) == PrincipiaUndoBatchSize">
+       <tr><td colspan=2 align=center>
        <a href="manage_UndoForm?first_transaction:int=<dtml-var
 	 last_transaction>&last_transaction:int=<dtml-var
 	 expr="last_transaction+PrincipiaUndoBatchSize"
          >&PrincipiaUndoBatchSize:int=<dtml-var PrincipiaUndoBatchSize
          >">
        Earlier Transactions</a>
-    </dtml-if>
        </td></tr>
+    </dtml-if>
     <tr><td></td></tr>
     <tr><td colspan=2 align=center><INPUT TYPE="SUBMIT" VALUE=" Undo ">
         </td></tr>