title: How to apply a git patch when given a pull number
body: <p>I downloaded a trunk version of a codebase from git, and there are build errors. Aparently a patch is now available, and I received an email :</p>
  
  <p>see https://github.com/JustinTulloss/zeromq.node/pull/47 for patch</p>
  
  <p>I am new to git so I'm not quite sure what to do with this 'patch' especially, since the page looks more like a discussion thread.</p>
  
  <p>Does anyone know how I can obtain/apply this patch to my locally cloned git repository?</p>