ansible/ansible — pull request #505 by jhoekx (2012-06-25 17:51:50+00:00)
Title: Always add host in yaml to 'ungrouped'.

Remove it from that group later if added to other groups.

Without doing this the following hosts file (or any without explicitly defined groups) would fail:

```
---

- host:
vars:
- ansible_python_interpreter: /usr/bin/python2
```