Fix `puppet-lint` unit tests for the v1.1.0

Summary: This unit test is failing locally for me, using v1.1.0 of `puppet-lint`.

Test Plan: `arc unit`

Reviewers: epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: Korvin, epriestley

Differential Revision: https://secure.phabricator.com/D11057