Add an example with an octal permission for chmod's documentation.

PR: 22445


git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@275135 13f79535-47bb-0310-9956-ffa450edef68

docs/manual/CoreTasks/chmod.html

@@ -103,6 +103,11 @@ href="../CoreTypes/filelist.html">filelist</a>s.</p>
 </blockquote>
 <p>makes the &quot;start.sh&quot; file readable and executable for anyone on a
 UNIX system.</p>
+<blockquote>
+  <p><code>&lt;chmod file=&quot;${dist}/start.sh&quot; perm=&quot;700&quot;/&gt;</code></p>
+</blockquote>
+<p>makes the &quot;start.sh&quot; file readable, writable and executable only for the owner on a
+UNIX system.</p>
 <blockquote>
 <pre>
 &lt;chmod dir=&quot;${dist}/bin&quot; perm=&quot;ugo+rx&quot;