[commit: ghc] ghc-7.10: Update Cabal submodule to latest 1.22.1.2 snapshot (cb51506)

[git at git.haskell.org]

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

On branch  : ghc-7.10
Link       : http://ghc.haskell.org/trac/ghc/changeset/cb51506b02a2ecf7b5e67a8069e61f4e8375ba67/ghc

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

commit cb51506b02a2ecf7b5e67a8069e61f4e8375ba67
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Sun Mar 15 07:14:32 2015 +0100

    Update Cabal submodule to latest 1.22.1.2 snapshot
    
    This addresses the Cabal side of #10115 as this pulls in the following
    two commits:
    
    > Make sure to pass the package key to ghc
    > Haddock: Use --package-{name|version} when available
    
    (cherry picked from commit 14b78eb7390dcf78c104501f4c24ac013a70a766)


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

cb51506b02a2ecf7b5e67a8069e61f4e8375ba67
 libraries/Cabal | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/Cabal b/libraries/Cabal
index a9958fe..cbd9d53 160000
--- a/libraries/Cabal
+++ b/libraries/Cabal
@@ -1 +1 @@
-Subproject commit a9958fefc737b223b75babc68ecd3122b9697cd9
+Subproject commit cbd9d53bc028717323417316a5ed10d65c704d87