Pass `--error-level=all` to `puppet-lint`
Pass `--error-level=all` to `puppet-lint`

Summary: Without explicitly passing `--error-level=all` to `puppet-lint`, the configuration file for `puppet-lint` could contain `--error-level=error`. This would limit the ability of `arc lint` to detect linter issues and therefore we should override this flag from the command line explicitly.

Test Plan: This is mostly theoretical.

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11316

julkiewicz/arcanist,julkiewicz/arcanist,julkiewicz/arcanist,julkiewicz/arcanist