patch applied (cabal): Improve runE parse error message

[Duncan Coutts]

Fri Jan 16 05:32:14 PST 2009  Duncan Coutts <duncan at haskell.org>
  * Improve runE parse error message
  Only really used in parsing config files derived from command line flags.

    M ./Distribution/ParseUtils.hs -1 +2

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20090116133214-adfee-65f8f9f2520a6249e4de7d52c848b93f7a13177b.gz