Add "since 1.7.0" to pattern and format. PR 45712.

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@690265 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/CoreTasks/checksum.html

@@ -116,7 +116,7 @@ or set the <tt>fileext</tt> attribute.
     suitable for <a
     href="http://java.sun.com/j2se/1.4.2/docs/api/java/text/MessageFormat.html">MessageFormat</a>
     where <code>{0}</code> is replaced with the checksum and
-    <code>{1}</code> with the file name.</td>
+      <code>{1}</code> with the file name. <em>Since Ant 1.7.0</em></td>
     <td valign="top" align="center">No - default is &quot;{0}&quot;.</td>
   </tr>
   <tr>
@@ -145,6 +145,7 @@ or set the <tt>fileext</tt> attribute.
         <td>the format of BSDs md5 command </td>
       </tr>
       </table>
+       <em>Since Ant 1.7.0</em>
     </td>
     <td valign="top" align="center">No - default is &quot;CHECKSUM&quot;.</td>
   </tr>