[GHC] #5148: ghci :set +s yields absurd negative times

[GHC]

#5148: ghci :set +s yields absurd negative times
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    Reporter:  applicative     |       Owner:              
        Type:  bug             |      Status:  new         
    Priority:  normal          |   Component:  GHCi        
     Version:  7.0.3           |    Keywords:              
    Testcase:                  |   Blockedby:              
          Os:  MacOS X         |    Blocking:              
Architecture:  x86_64 (amd64)  |     Failure:  None/Unknown
-------------------------------+--------------------------------------------

Comment(by altaic):

 This is likely a dup of #4970

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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/5148#comment:2>
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