puppetlabs/puppet — pull request #1534 by Sharpie (2013-03-18 21:47:07+00:00)
Title: (#19779) Call PSON::pretty_generate instead of jj

The `jj` method can be clobbered if other JSON libraries, notably `json_pure`,
are loaded. When this occurs, `puppet master --compile` silently fails to
produce any output.