ansible/ansible — pull request #3794 by sergevanginderachter (2013-08-08 16:18:39+00:00)
Title: Host specifiers should be sorted

to ensure consistent behavior, hosts should look like this:

hosts: webservers:&boston:!rack42

So when applying the host selectors, run those without the "&" first,
then the &s, then the !s.

Closes #3500

Now you can do something like `ansible "!production" -m shell -a reboot`