title: uncomment XML content with XSLT
body: <p>I have a problem with XML and XSLT.
  I have one XML file with some comment and I want to uncomment it. </p>
  
  <p>For example:</p>
  
  <pre><code>&lt;my-app&gt;
   &lt;name&gt;
   &lt;/name&gt;
    &lt;!-- &lt;class&gt;
           &lt;line&gt;&lt;/line&gt;
     &lt;/class&gt;--&gt;
  &lt;/my-app&gt;
  </code></pre>
  
  <p>I want to uncomment this commented tag.</p>