Since the primary hostname of the gating machines is too large to be
used as the primary server hostname, and the installation tests are
covered in other tests, the sanity test is being disable until there's
a change either on IPA (to allow for larger hostnames) or in the test
environment.
The 'warn' parameter of Ansible 'shell' and 'command' builtin plugins
was deprecated in Ansible 2.11 and removed in Ansible 2.14. This patch
fixes 'baseos-ci.redhat-module.tier0.functional' tests that were failing
due to the use of the parameter on newer versions of Ansible.
