[commit: ghc] ghc-8.2: Bump haddock submodule (f4841ad)

[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/f4841ad7c6c88251a9cd156888470d999b629b0f/ghc

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

commit f4841ad7c6c88251a9cd156888470d999b629b0f
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Mon May 1 11:41:41 2017 -0400

    Bump haddock submodule


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f4841ad7c6c88251a9cd156888470d999b629b0f
 utils/haddock | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/haddock b/utils/haddock
index 0278700..2163981 160000
--- a/utils/haddock
+++ b/utils/haddock
@@ -1 +1 @@
-Subproject commit 02787004ffeb16c9d848b77b6e23598b58596348
+Subproject commit 2163981e773b76212b2265a1eb03208ee2e7edf2