ansible/ansible — pull request #2871 by tima (2013-05-08 18:16:00+00:00)
Title: Fixed bug where a host entry in the inventory represented as a dict w/o ...

Fixed bug where a host entry in the inventory represented as a dict w/o a hosts or vars key was treated as a group and its vars essentially ignored.

See for more: https://github.com/tima/ansible/commit/05f66001c675ea5c9884f1558e382fd40dab8e56