title: Setting username in Mercurial .hgrc file
body: <p>I have been browsing SO and Google for a solution to my basic problem, and so far I have had no luck.</p>
  
  <p>I am brand new to Mercurial and have just installed it on my Mac. I am using it for personal version control and will not be communicating with a central server (yet).</p>
  
  <p>When I try to commit files, I get <strong>abort: no username supplied (see "hg help config")</strong>. The common solution to this problem is putting the following in ~/.hgrc</p>
  
  <pre><code>[ui]
  username = Firstname Lastname &lt;firstname.lastname@example.net&gt;
  </code></pre>
  
  <p>which I have done, but the error remains. It just won't read the file. Any suggestions?</p>