patch applied (packages/Cabal): Rename --distpref to --distdir

[Ian Lynagh]

Mon Aug 25 09:42:58 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Rename --distpref to --distdir
  It's more consistent with the other flag names for dirs.
  Kept the old name too, but it's not shown by --help.

    M ./Distribution/Simple/Setup.hs -25 +53

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080825164258-adfee-4a668ad7f9620b369bd176c675f27c2fae8de75b.gz