patch applied (cabal-install): Swap Either args so it's Either Error Ok

Fri May 9 08:20:07 PDT 2008 Duncan Coutts * Swap Either args so it's Either Error Ok Which seems to be the normal convention. M ./Hackage/Dependency.hs -14 +12 M ./Hackage/InstallPlan.hs -3 +3 View patch online: http://darcs.haskell.org/cabal-install/_darcs/patches/20080509152007-adfee-8...