title: What does #, fuzzy mean at the top of a xgettext-generated .pot file?
body: <p>When using <code>xgettext</code> to generate a <code>.pot</code> file, at the top of the generated file I get this:</p>
  
  <pre><code># SOME DESCRIPTIVE TITLE.
  ...
  #, fuzzy
  ...
  </code></pre>
  
  <p>What does the <code>#, fuzzy</code> mean?</p>
  
  <p>I know what it means if a translation is fuzzy (it is poor quality), but what does it mean at the <strong>top</strong> of a <code>.pot</code> file?</p>