patch applied (cabal): And exitcode of 2 from ghc-pkg when doing describe '*' means no packages

[Ian Lynagh]

Tue Jul 22 05:57:59 PDT 2008  Ian Lynagh <igloo at earth.li>
  * And exitcode of 2 from ghc-pkg when doing describe '*' means no packages
  This is a bit of a kludge around GHC's #2201, until Cabal is updated to
  use ghc-pkg dump.

    M ./Distribution/Simple/GHC.hs -6 +12

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20080722125759-3fd76-ebb515720df058635d4b2bfd252d00bf9af837ff.gz