Merge pull request #4560 from tremble/always_run

Automatic merge from submit-queue.

replace deprecated always_run with check_mode: no

Prior to Ansible 2.2 only the the equivalent of check_mode: no existed. The
notation for that was always_run: yes.

always_run now generates a deprecation warning:

> [DEPRECATION WARNING]: always_run is deprecated. Use check_mode = no instead..
> This feature will be removed in version 2.4. Deprecation warnings can be
> disabled by setting deprecation_warnings=False in ansible.cfg.