patch applied (cabal-install): When marking failed reverse deps, don't include the package itself

[Duncan Coutts]

Wed Jun  4 17:36:56 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * When marking failed reverse deps, don't include the package itself
  Otherwise we end up saying packages failed because they depend
  on themselves which failed to install, which is silly.

    M ./Hackage/InstallPlan.hs +1

View patch online:
http://darcs.haskell.org/cabal-install/_darcs/patches/20080605003656-adfee-0c833865eb810b0e3c6bee896439a6effb2c50ac.gz