Fix LoginActivityTest AssertionError message.

For great justice! This may rank in the top 10 of most useful pull requests ever.

The meme is most definitely, "Somebody set up us the bomb."
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Source:
http://www.youtube.com/watch?v=vfwqvUPIRkg
Merge pull request #65 from dlam/patch-1

Fix LoginActivityTest AssertionError message.