pivotal/LicenseFinder — pull request #91 by mainej (2014-04-14 15:16:00+00:00)
Title: Improve error when calling `license_finder approve` without naming a dependency

Thor knows how to show the 'usage' when a method is given the wrong number of arguments, which is better than our implementation. This patch also shows a similar error message when calling `license_finder whitelist add` and `license_finder whitelist remove`.