[commit: ghc] ghc-8.4: Update haddock submodule (004b76a)

[git at git.haskell.org]

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

On branch  : ghc-8.4
Link       : http://ghc.haskell.org/trac/ghc/changeset/004b76a2da15270b9840fc381bc731694da0ec3b/ghc

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commit 004b76a2da15270b9840fc381bc731694da0ec3b
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Sun Feb 25 17:12:44 2018 -0500

    Update haddock submodule
    
    Fixes file handle leak


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004b76a2da15270b9840fc381bc731694da0ec3b
 utils/haddock | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/utils/haddock b/utils/haddock
index d66092e..7a36a41 160000
--- a/utils/haddock
+++ b/utils/haddock
@@ -1 +1 @@
-Subproject commit d66092ee99639de628dbc4fce8a9936875f47d8c
+Subproject commit 7a36a41e154f9ff380b10584ec1a9f8bc4003be1