rubenv/pofile — pull request #4 by johnyb (2014-01-22 13:14:52+00:00)
Title: fix default value of msgctxt field

I added a few more edge-cases to the tests for the new msgctxt field and
revealed a bug during that. The default value has been set to empty
string, but should have been null, since the spec says, this field is
optional.