[commit: ghc] master: Update `Cabal` to 1.18.1 final (2fbfa11)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/2fbfa11ccfda6ce70d72ade55514f058a7a95072/ghc

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

commit 2fbfa11ccfda6ce70d72ade55514f058a7a95072
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Fri Sep 20 20:49:25 2013 +0200

    Update `Cabal` to 1.18.1 final


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2fbfa11ccfda6ce70d72ade55514f058a7a95072
 libraries/Cabal |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/Cabal b/libraries/Cabal
index 73b7689..902bbad 160000
--- a/libraries/Cabal
+++ b/libraries/Cabal
@@ -1 +1 @@
-Subproject commit 73b7689145ca043ee76b30ccc000d744b6104e3c
+Subproject commit 902bbad99f1724161c1a3c2eede633751c94a57d