Pretty: remove a harmful $! (#12227)

Authored by thomie on Jul 16 2016, 5:13 PM.

Description

Pretty: remove a harmful $! (Trac #12227)

This is backport of [1] for GHC's copy of Pretty. See Note [Differences
between libraries/pretty and compiler/utils/Pretty.hs].

[1] http://git.haskell.org/packages/pretty.git/commit/bbe9270c5f849a5bb74c9166a5f4202cfb0dba22

https://github.com/haskell/pretty/issues/32
https://github.com/haskell/pretty/pull/35

Reviewers: bgamari, austin

Reviewed By: austin

Differential Revision: https://phabricator.haskell.org/D2397

GHC Trac Issues: Trac #12227

Details