patch applied (cabal-install): Simplify version ranges before printing in error messages

[Duncan Coutts]

Sun May 31 12:13:46 PDT 2009  Duncan Coutts <duncan at haskell.org>
  * Simplify version ranges before printing in error messages
  Part of ticket #369

    M ./Distribution/Client/Dependency/TopDown.hs -8 +18

View patch online:
http://darcs.haskell.org/cabal-install/_darcs/patches/20090531191346-adfee-c469d553c51b9b6e35649fc65673760f46fb580d.gz