For ghc >= 7.10 use displayException in topHandler
For ghc >= 7.10 use displayException in topHandler

(Ideally this would check the version of base instead, but that's not really
possible with bootstrapping Cabal; checking the version of ghc instead is what
happens in lots of other places so sticking with that for now.)

mmakowski/cabal,randen/cabal,Peaker/cabal,valderman/cabal,mmakowski/cabal,eric-stanley/cabal,kolmodin/cabal,thomie/cabal,headprogrammingczar/cabal,edsko/cabal,mydaum/cabal,kolmodin/cabal,valderman/cabal,bennofs/cabal,martinvlk/cabal,sopvop/cabal,ghc-android/cabal,x-y-z/cabal,martinvlk/cabal,thoughtpolice/cabal,gbaz/cabal,sopvop/cabal,thoughtpolice/cabal,bennofs/cabal,garetxe/cabal,edsko/cabal,Heather/cabal,themoritz/cabal,beni55/cabal,thomie/cabal,ghc-android/cabal,Heather/cabal,Peaker/cabal,headprogrammingczar/cabal,lukexi/cabal,themoritz/cabal,x-y-z/cabal,randen/cabal,mydaum/cabal,gbaz/cabal,enolan/cabal,lukexi/cabal,beni55/cabal,sopvop/cabal,trskop/cabal,trskop/cabal,themoritz/cabal,eric-stanley/cabal,garetxe/cabal,enolan/cabal