title: How do I remove git's MERGE_MSG?
body: <p>I've tried a few things suggested, but nothing seems to remove it. This started occurring when I upgraded to Mountain Lion OS X. Anytime I do a <code>git pull</code>, it displays this annoying as heck empty editor with the title MERGE_MSG.</p>
  
  <p>How do I prevent that from popping up <em>globally</em> across all my apps?</p>