title: Why is git prompting me for a post-pull merge commit message?
body: <p>Recently, following any <code>git pull</code>, git has started spawning my text editor, and asking for a merge commit message. A commit message is already pre-filled, and I just have to save and close the window to complete the pull.</p>
  
  <p>In the past, it would do the merge silently, with a standard commit message (along the lines of <code>Merge branch 'dev' of remote.com:/repo into dev</code>).</p>
  
  <p>I recently updated git to version 1.7.11.3 (via homebrew), but can't think of anything else I might have done to change this behavior. Is this a setting, or is there otherwise some way of getting back to the way it was?</p>