title: How do I do the reverse of gitk's "Write commit to file"?
body: <p>I have written a commit to a file from <code>gitk</code> by right-clicking the commit and selecting "Write commit to file".</p>
  
  <p>How do I apply the commit from this file? I can do <code>git apply</code>, <code>git add</code> and <code>git commit</code> combo, but isn't there a one-step command to just take the output (with the commit message and meta-data) and commit it as it is?</p>