patch applied (cabal): Document the $os and $arch install path vars

Tue Jul 29 08:56:54 PDT 2008 Duncan Coutts * Document the $os and $arch install path vars M ./doc/Cabal.xml -11 +52 View patch online: http://darcs.haskell.org/cabal/_darcs/patches/20080729155654-adfee-d5c65e912...