Similar absolute url fix for cabal-install
Similar absolute url fix for cabal-install

In this case with index generation it's more benign, but still better
to handle things consistently.

plumlife/cabal,beni55/cabal,ian-ross/cabal,anton-dessiatov/cabal,martinvlk/cabal,randen/cabal,kolmodin/cabal,fpco/cabal,beni55/cabal,kosmikus/cabal,christiaanb/cabal,ghc-android/cabal,Heather/cabal,gbaz/cabal,themoritz/cabal,sopvop/cabal,triplepointfive/cabal,lukexi/cabal,Peaker/cabal,Heather/cabal,sopvop/cabal,headprogrammingczar/cabal,garetxe/cabal,lukexi/cabal,corngood/cabal,sopvop/cabal,thoughtpolice/cabal,Helkafen/cabal,seereason/cabal,gbaz/cabal,rimmington/cabal,plow-technologies/cabal,x-y-z/cabal,gridaphobe/cabal,seereason/cabal,fugyk/cabal,enolan/cabal,gridaphobe/cabal,plow-technologies/cabal,randen/cabal,typelead/epm,ian-ross/cabal,triplepointfive/cabal,ghc-android/cabal,mmakowski/cabal,Helkafen/cabal,anton-dessiatov/cabal,thomie/cabal,Peaker/cabal,plumlife/cabal,fpco/cabal,headprogrammingczar/cabal,valderman/cabal,trskop/cabal,martinvlk/cabal,thomie/cabal,mightybyte/cabal,kolmodin/cabal,bennofs/cabal,edsko/cabal,mightybyte/cabal,garetxe/cabal,corngood/cabal,themoritz/cabal,kosmikus/cabal,trskop/cabal,christiaanb/cabal,typelead/epm,thoughtpolice/cabal,eric-stanley/cabal,bennofs/cabal,mmakowski/cabal,eric-stanley/cabal,mydaum/cabal,themoritz/cabal,rimmington/cabal,valderman/cabal,mydaum/cabal,edsko/cabal,enolan/cabal,fugyk/cabal,x-y-z/cabal