patch applied (cabal): force results inside withHaskellFile

[Ross Paterson]

Sat Jun 14 09:07:07 PDT 2008  Ross Paterson <ross at soi.city.ac.uk>
  * force results inside withHaskellFile
  
  withUTF8FileContents now closes the file, so we need to force what we're
  computing from the contents before it's gone.

    M ./Distribution/Simple/Hugs.hs -2 +2

View patch online:
http://darcs.haskell.org/cabal/_darcs/patches/20080614160707-b47d3-35874b5db4187324711aeabd0f60d1b14a11b644.gz