title: How to update just one library from the Cartfile with Carthage?
body: <p>My Cartfile has many libraries. When I do <code>carthage update</code> it goes through all the libraries. That can take very long time.</p>
  
  <p>Is there a way to update just a single library with carthage? Something like this? (this will not work)</p>
  
  <pre><code>carthage update "evgenyneu/moa"
  </code></pre>