Make the example for -M work

Authored by niteria on Apr 1 2016, 3:03 PM.

Description

Make the example for -M work

ghc fails without -dep-suffix ''.

Test Plan: visual inspection

Reviewers: austin, bgamari

Reviewed By: bgamari

Subscribers: thomie, simonmar

Differential Revision: https://phabricator.haskell.org/D2075