[commit: ghc] master: Update haskeline submodule to 0.7.2.1 release tag (899cb3e)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/899cb3e768bf495b396f59dc2b49b7b10eb4ad8c/ghc

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

commit 899cb3e768bf495b396f59dc2b49b7b10eb4ad8c
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Sun Mar 22 08:22:03 2015 +0100

    Update haskeline submodule to 0.7.2.1 release tag
    
    This fixes compilation under windows with pre-AMP GHCs
    although it's not clear if bootstrapping GHC was affected.
    (see https://github.com/judah/haskeline/issues/20 for details)


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

899cb3e768bf495b396f59dc2b49b7b10eb4ad8c
 libraries/haskeline | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/haskeline b/libraries/haskeline
index 06679b7..7a72748 160000
--- a/libraries/haskeline
+++ b/libraries/haskeline
@@ -1 +1 @@
-Subproject commit 06679b723fc07ca805d0dc6b328a5762255e93ee
+Subproject commit 7a72748b3898e68c99e3d5ae7d06c58dd190b149