patch applied (cabal): Use 'ghc-pkg dump' instead of 'ghc-pkg describe *'

[Duncan Coutts]

Thu Aug  7 12:03:07 PDT 2008  David Waern
  * Use 'ghc-pkg dump' instead of 'ghc-pkg describe *'
  
  Does not implement lazy parsing of the output of ghc-pkg dump, so this
  is only a partial fix of #311.
    
  For more information about why we want to use ghc-pkg dump, see GHC
  ticket #2201.

    M ./Distribution/Simple/GHC.hs -20 +10

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20080807190307-2dda9-1ca0b6fa7c364ff319eef4f10ed2020033f03e2f.gz