[commit: ghc] ghc-8.2: Bump haddock submodule (4f81642)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : ghc-8.2
Link       : http://ghc.haskell.org/trac/ghc/changeset/4f816422f3c06c0860e24290242f8f8c664975c5/ghc

>---------------------------------------------------------------

commit 4f816422f3c06c0860e24290242f8f8c664975c5
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Thu Jul 20 08:43:01 2017 -0400

    Bump haddock submodule


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4f816422f3c06c0860e24290242f8f8c664975c5
 utils/haddock | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/haddock b/utils/haddock
index 22cbf4d..cc1577a 160000
--- a/utils/haddock
+++ b/utils/haddock
@@ -1 +1 @@
-Subproject commit 22cbf4d9509d3b537e6c2fcf4c95ae73d930b9aa
+Subproject commit cc1577ae29763dfeb9483b5c7dcc723bb3a014f0