ansible/ansible — pull request #1778 by junegunn (2012-12-15 16:57:21+00:00)
Title: Fix hostname expansion bug in inventory parser

In the following case,
```
[role1]
host[1:2]

[role2]
host[2:3]
```
host2 should be in both groups, but due to a bug in inventory parser, it isn't.

Fixed it and added a test case.