patch applied (cabal): Improve the error message for missing sh.exe on Windows

[Duncan Coutts]

Mon Nov  9 10:26:24 PST 2009  Duncan Coutts <duncan at haskell.org>
  * Improve the error message for missing sh.exe on Windows
  Ignore-this: 5801ce5598387ad238e61a075285ddf0
  When ettempting to run ./configure scripts. Fixes ticket #403.

    M ./Distribution/Simple.hs -8 +30

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20091109182624-adfee-7df553259a850c79ab3ced5074812b871953c6a3.gz