rvagg/levelmeup — pull request #21 by thehack (2013-09-28 11:15:50+00:00)
Title: Clarify error reporting instruction

As I worked through this lesson, it wasn't immediately clear which error I was supposed to filter out of the output, so I just had to use trial and error to figure it out.

I thought it might be helpful to be a little more descriptive about which error to filter out of the output.