title: Indent under the previous line
body: <p>This is my snippent:</p>
  
  <pre><code>foo ($1)
  $0
  </code></pre>
  
  <p>Where I activate it with indent and touch 'arg&lt;Tab&gt;bar' I want like this:</p>
  
  <pre><code>  foo (x)
    bar
  </code></pre>
  
  <p>But I got this:</p>
  
  <pre><code>  foo (x)
  bar
  </code></pre>
  
  <p>My yas-indent-line is fixed. Emacs 24.2.1 Yasnippet 0.8.0 (20130218)</p>