ansible/ansible — pull request #7058 by jkleckner (2014-04-18 19:05:18+00:00)
Title: Fix #7057 missing False default for vars_prompt

The test for default should be "is not None" since a boolean value of
False is a valid value.

See discussion at:
[https://groups.google.com/forum/#!topic/ansible-project/oc1_zE-FnyI]