[commit: ghc] master: Bump Win32 submodule (e815901)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/e815901d8f1d0e8c6916fcf0e87c68998475407e/ghc

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

commit e815901d8f1d0e8c6916fcf0e87c68998475407e
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Mon Apr 3 19:00:33 2017 -0400

    Bump Win32 submodule
    
    Fixes #13514.


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e815901d8f1d0e8c6916fcf0e87c68998475407e
 libraries/Win32 | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/Win32 b/libraries/Win32
index 67c5cc5..b5ebb64 160000
--- a/libraries/Win32
+++ b/libraries/Win32
@@ -1 +1 @@
-Subproject commit 67c5cc56f0faeacc553471c8a7d9b9b95e011731
+Subproject commit b5ebb64894cf166f9ee84ee91802486c76e480cf