[GHC] #9861: ghc readme provides out of date git clone directions

[GHC]

#9861: ghc  readme provides out of date git clone directions
-------------------------------------+-------------------------------------
        Reporter:  carter            |                   Owner:
            Type:  bug               |                  Status:  merge
        Priority:  normal            |               Milestone:  7.10.3
       Component:  Compiler          |                 Version:  7.9
      Resolution:                    |                Keywords:
Operating System:  Unknown/Multiple  |            Architecture:
                                     |  Unknown/Multiple
 Type of failure:  None/Unknown      |               Test Case:
      Blocked By:                    |                Blocking:
 Related Tickets:                    |  Differential Revisions:  phab:D555
-------------------------------------+-------------------------------------

Comment (by bgamari):

 This was merged to `ghc-7.10` as 4f8b873.

--
Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/9861#comment:4>
GHC <http://www.haskell.org/ghc/>
The Glasgow Haskell Compiler