btford/write-good — pull request #31 by bamos (2014-10-26 06:30:35+00:00)
Title: Set return code in command line version.

Hi @btford - great library! I'm using `write-good` in a Makefile for LaTeX documents
and setting the return code is nice for short circuiting out.
I'm not sure if a return code is desired in all cases, but feel free to merge
this if it makes sense.

Regards,
Brandon.