title: What is PEP8's E128: continuation line under-indented for visual indent?
body: <p>Just opened a file with Sublime Text (with Sublime Linter) and noticed a PEP8 formatting error that I'd never seen before. Here's the text:</p>
  
  <pre><code>urlpatterns = patterns('',
      url(r'^$', listing, name='investment-listing'),
  )
  </code></pre>
  
  <p>It's flagging the second argument, the line that starts <code>url(...)</code></p>
  
  <p>I was about to disable this check in ST2 but <strong><em>I'd like to know what I'm doing wrong</em></strong> before I ignore it. You never know, if it seems important I might even change my ways :)</p>