takano-akio authored May 12, 2016 and Ben Gamari committed May 12, 2016

This is a follow-up of D2189. If fixes some comments, deletes a section
in the User's Guide about the bug, and updates .mailmap as suggested on
the WorkinConventions wiki page.

Test Plan: It compiles.

Reviewers: austin, simonmar, bgamari

Reviewed By: bgamari

Subscribers: thomie

Differential Revision: https://phabricator.haskell.org/D2202

GHC Trac Issues: #11108