csv module complains about unknown dialect when invoked in previous way

[FLMFreddy]

Hey,

The change made sense so I thought I would just do it and if you want you can merge it. Enjoying the course so far!

Regards, Ante

[mjhea0]

Updated in v 2.0 of the courses. Coming week of 12/19/2016. https://github.com/realpython/about/blob/master/changelog.csv