Changes to ghc

Changes to ghc:
commit 54c5fde9010021214ac5ad88cb80a94fb8014747
Author: Simon Peyton Jones <simonpj@microsoft.com>
Date:   Mon Nov 18 18:09:28 2013 +0000

    Fix typo in a836b6, 'Improve orientation'

    Just a straightforward error, now fixed.