[commit: ghc] master: Update transformers submodule (590e737)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/590e7376de357a61555181d78f5201cf2f503aa5/ghc

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commit 590e7376de357a61555181d78f5201cf2f503aa5
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Sat Sep 2 10:24:39 2017 +0200

    Update transformers submodule
    
    This updates `transformers` from the v0.5.2 release to the
    v0.5.4 release + unreleased changes
    
    This is a pre-requisite for the Semigroup=>Monoid implementation


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590e7376de357a61555181d78f5201cf2f503aa5
 libraries/transformers | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/transformers b/libraries/transformers
index 10348c4..36311d3 160000
--- a/libraries/transformers
+++ b/libraries/transformers
@@ -1 +1 @@
-Subproject commit 10348c4bbf60debbfc82463e1035aca1cb7b51bc
+Subproject commit 36311d39bc545261dab85d4a27af562db1868ed6