* Improved ANSIBLE_DIRECTORY validation to support the repository root
Fixes#1110, which prevents linting playbooks at the root of the repository from being supported.
* Trim whitespace
* Remove undesired extra validation condition
Addressing review feedback from @ ferrarimarco
* Avoid mutating ANSIBLE_DIRECTORY beyond the extent that was already in place
Co-authored-by: Lukas Gravley <admiralawkbar@github.com>
* Change log level from warn to debug
* Move 'Linting x file' to be printed only if files are found
Co-authored-by: Lukas Gravley <admiralawkbar@github.com>