[commit: ghc] ghc-8.6: Bump unix submodule (3f96594)

[git at git.haskell.org]

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

On branch  : ghc-8.6
Link       : http://ghc.haskell.org/trac/ghc/changeset/3f96594166bda2b228c1f9189dd5bfc7e1dd5a31/ghc

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

commit 3f96594166bda2b228c1f9189dd5bfc7e1dd5a31
Author: Ben Gamari <ben at smart-cactus.org>
Date:   Sat Jul 14 11:43:31 2018 -0400

    Bump unix submodule
    
    (cherry picked from commit c3328ff354db2be5994807fed6b5b132489a9e3e)


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3f96594166bda2b228c1f9189dd5bfc7e1dd5a31
 libraries/unix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/unix b/libraries/unix
index c9ec0b0..ee3e99a 160000
--- a/libraries/unix
+++ b/libraries/unix
@@ -1 +1 @@
-Subproject commit c9ec0b00012e5eb447ff021091f86efe31be8abf
+Subproject commit ee3e99a0d8a75edc90a1a4e9fb1c593a99a02bb9