patch applied (cabal-install): Use the setupWrapper useWorkingDir feature in Install

[Duncan Coutts]

Wed Jul 30 06:20:04 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Use the setupWrapper useWorkingDir feature in Install
  Rather than calling inDir directly.

    M ./Distribution/Client/Install.hs -4 +5

View patch online:
http://darcs.haskell.org/cabal-install/_darcs/patches/20080730132004-adfee-0be215d908499dc65f9c6a337adb83b7948f0e85.gz