[commit: ghc] master: Update binary submodule to 0.7.3.0 release (f2867dc)

[git at git.haskell.org]

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

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/f2867dc52be69accec841dc8c4bbeb5e84edec51/ghc

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commit f2867dc52be69accec841dc8c4bbeb5e84edec51
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Thu Jan 22 23:06:14 2015 +0100

    Update binary submodule to 0.7.3.0 release
    
    One highlight of 0.7.3.0 is the new instance for `Natural`


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f2867dc52be69accec841dc8c4bbeb5e84edec51
 libraries/binary | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libraries/binary b/libraries/binary
index a3edce4..ff9a48f 160000
--- a/libraries/binary
+++ b/libraries/binary
@@ -1 +1 @@
-Subproject commit a3edce4b95b82388997929424ce98b1d7a75350d
+Subproject commit ff9a48fb213c2d1fd2e58b19c92264a3efadff7a