[commit: ghc] ghc-8.4: Bump haskeline submodule to 0.7.4.2 (bd7f179)

[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/bd7f179953ad57abcf31652ca208c1db8ece1cc3/ghc

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

commit bd7f179953ad57abcf31652ca208c1db8ece1cc3
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Sun Feb 18 11:29:56 2018 -0500

    Bump haskeline submodule to 0.7.4.2


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bd7f179953ad57abcf31652ca208c1db8ece1cc3
 libraries/haskeline | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/haskeline b/libraries/haskeline
index 1436a8c..019e08f 160000
--- a/libraries/haskeline
+++ b/libraries/haskeline
@@ -1 +1 @@
-Subproject commit 1436a8c7c8ee5076c99e09fe20943bf6101237af
+Subproject commit 019e08f2c91b7cc45e5fb98189193a9f5c2d2d57