title: Dashes in jinja templates
body: <p>Found some of these in jinja files: </p>
  
  <pre><code>&lt;/extension&gt;
  {%- else -%}
  &lt;extension name="blabla"&gt;
  </code></pre>
  
  <p>And also </p>
  
  <pre><code>{% if freeswitch_dispatcher -%}
  &lt;extension name="hold_unhold"&gt;
  </code></pre>
  
  <p>See the dashes ?  Any idea what it's for ?</p>