[commit: ghc] master: Update haskeline submodule to 0.7.2.3 release (8a75bb5)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/8a75bb5874070bc879818bba572a94632cf079d5/ghc

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commit 8a75bb5874070bc879818bba572a94632cf079d5
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Sun Apr 17 20:42:43 2016 +0200

    Update haskeline submodule to 0.7.2.3 release


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8a75bb5874070bc879818bba572a94632cf079d5
 libraries/haskeline | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/haskeline b/libraries/haskeline
index 5e53651..8addaa2 160000
--- a/libraries/haskeline
+++ b/libraries/haskeline
@@ -1 +1 @@
-Subproject commit 5e53651b2683f31bf5efc842c33f07afc05ec287
+Subproject commit 8addaa2f6f4256da76bac4075316597d0b1d8f67