patch applied (packages/Cabal): Add checkPackageFileNames function to check portability of file names

[Ian Lynagh]

Wed Aug 27 01:23:49 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Add checkPackageFileNames function to check portability of file names
  Windows has restrictions on names of files and portable
  tar archives have some weird length restrictions too.
  Not yet used but should be used in sdist and hackage.

    M ./Distribution/PackageDescription/Check.hs -1 +97

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080827082349-adfee-94f34440215bba8799788bce85c880755807c764.gz