fails when run with --check

[seilting]

When I run ansible-playbook ... --check --diff, it goes fine until this happens:

TASK [geerlingguy.mysql : Remove anonymous MySQL users.] ***********************
[DEPRECATION WARNING]: Skipping task due to undefined Error, in the future this will be a fatal error.: 'dict object' has no attribute 'stdout_lines'.
This feature will be removed
in a future release. Deprecation warnings can be disabled by setting deprecation_warnings=False in ansible.cfg.
fatal: [new-staging]: FAILED! => {"failed": true, "msg": "'item' is undefined"}

It doesn't fail without --check. The deprecation warning appears to be related: mysql_anonymouse_hosts is not set in check mode.

I am running ansible 2.1.0.0 on OS X, the target machine is a Ubuntu 14.04.4 VM.

Playbook to demonstrate:

---
- name: Test check mode
  tasks:
    - name: register something
      command: ls /
      register: command_output
      changed_when: false
    - debug: msg="output is {{command_output}}"
...

If run with --check, the debug output is:

output is {u'msg': u'remote module does not support check mode', u'skipped': True, u'changed': False}

[geerlingguy]

See related: #99

[geerlingguy]

Fixed in #130