[GHC] #12880: Update to Cabal-1.24.1.1

[GHC]

#12880: Update to Cabal-1.24.1.1
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           Reporter:  hvr            |             Owner:
               Type:  task           |            Status:  new
           Priority:  high           |         Milestone:  8.0.2
          Component:  libraries      |           Version:  8.0.2-rc1
  (other)                            |
           Keywords:                 |  Operating System:  Unknown/Multiple
       Architecture:                 |   Type of failure:  None/Unknown
  Unknown/Multiple                   |
          Test Case:                 |        Blocked By:
           Blocking:                 |   Related Tickets:
Differential Rev(s):                 |         Wiki Page:
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 This is a tracking ticket to make sure it we don't forget about this. See
 https://github.com/haskell/cabal/issues/4123

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Ticket URL: <http://ghc.haskell.org/trac/ghc/ticket/12880>
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