title: How do you take a git diff file, and apply it to a local branch that is a copy of the same repository?
body: <p>I have a .diff file created by a coworker, and would like to apply the changes listed in that diff file to my local branch of the exact same repository.  I do not have access to that worker's pc or branch that was used to generate this diff file.</p>
  
  <p>Obviously I could go line by line and retype everything, but i'd rather not subject the system to human error. What's the easiest way to do this?</p>