title: point gem branch path in gemfile
body: <p>How to point gem branch path in gemfile.</p>
  
  <p>This is what i am doing :</p>
  
  <pre><code>gem 'rails',     path: '/home/ubuntu/workspace/Fork/rails', :branch =&gt; 'any_of'
  </code></pre>
  
  <p>but when i run <code>bundle update</code>, it's not show any branch like sprockets-rails.</p>
  
  <pre><code>Using sprockets-rails (2.0.0.rc4) from git://github.com/rails/sprockets-rails.git (at master) 
  Using rails (4.1.0.beta) from source at /home/ubuntu/workspace/Fork/rails
  </code></pre>
  
  <p>Is there any typo?</p>