patch applied (packages/Cabal): Canonicalise the package deps returned by finalizePackageDescription

[Simon Marlow]

Mon Nov  9 11:35:56 PST 2009  Duncan Coutts <duncan at haskell.org>
  * Canonicalise the package deps returned by finalizePackageDescription
  Ignore-this: eb489503c4a9e27dd8d427cf707461f9
  The guarantee is supposed to be that each package name appears at most
  once with all the constraints for that dependency. The cabal-install
  planner relies on this property.

    M ./Distribution/PackageDescription/Configuration.hs -5 +8

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20091109193556-adfee-afd5861b304e18809d2b87548d594a4691de23a8.gz