mozilla/node-convict — pull request #26 by busticated (2013-12-02 20:29:57+00:00)
Title: coerce 'nat' formatted values

From [the docs](https://github.com/mozilla/node-convict#coercion):

> ...values with the format int, nat, port, or Number will become numbers after a straight forward parseInt or parseFloat.

I found that the 'nat' format wasn't being handled.