title: Wrong indentation when editing Yaml in Vim
body: <p>Vim does not seem to correctly react at a dash symbol in YAML files therefore breaking the format.</p>
  
  <p>For example I have a block which should look like this:</p>
  
  <pre><code>  handlers:
          - name: restart exim4
            service: name=exim4 state=restarted
  </code></pre>
  
  <p>When I finish typing <code>restart exim4</code> and type <code>service:</code> Vim reindents my final <code>service</code> line:</p>
  
  <pre><code>  handlers:
          - name: restart exim4
          service: name=exim4 state=restarted
  </code></pre>
  
  <p>So clearly Vim tries to align sentences <em>column-wise</em> but that's not what is needed in YAML. I want to create an array with two values.</p>
  
  <p>How to fix that?</p>