title: Grunt variable as filename and file path
body: <p>I'm trying to use Grunt option to define a file path and file name. This used to work but now I'm getting an unexpected token error. </p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>var myTarget = grunt.option('target');
  'build/assets/css/' + myTarget + '.css': 'source/scss/' + myTarget + '/styles.scss'</code></pre>
  </div>
  </div>
  </p>