title: Shorthand for multiple file extensions in.gitignore
body: <p>Is there a Bash script-like shorthand for matching multiple different extensions in a <code>.gitignore</code> file such as:</p>
  
  <pre><code>*.{bak,save,aux,nav,toc}
  </code></pre>
  
  <p>?</p>
  
  <p>The syntax above <em>definitely</em> does <em>not</em> work.</p>