Yeah, it would would be a combination of the expected output with [this notice](https://github.com/dtao/safe_yaml/commit/17e60bac1d333a8298db4ffb95bd6f7d058b02c7#diff-db49b9159cb852cbe9626f805534e964R26) from `safe_yaml`. Because of that the tests would fail attempting to parse the JSON (or checking for exact output). Wish I had a copy of the message from Travis but can't find one of the failed jobs.

I made the assumption that using berkshelf in a unix environment, the effective API would be to pipe STDOUT through to another command.