title: Can't make messages with Django's JavascriptCatalogView
body: <p>I use Djnago with sites framework. The static root has the following structure:</p>
  
  <ul>
  <li>css</li>
  <li>js
  
  <ul>
  <li>site1.bundle.js</li>
  <li>site2.bundle.js</li>
  <li>site3.bundle.js</li>
  </ul></li>
  </ul>
  
  <p>When I try to make messages (<code>python manage.py makemessages -d djangojs -a</code>) the command above extracts messages only from the <code>site1.bundle.js</code> and ignores other files.</p>
  
  <p>How can I make single translation file from all JS files?</p>