darcs patch: Treat tabs in .cabal files as 8 spaces (when used as i...

[Bryan O'Sullivan]

Thomas Schilling wrote:
> Tue Jul 31 18:54:09 CEST 2007  Thomas Schilling <nominolo at gmail.com>
>   * Treat tabs in .cabal files as 8 spaces (when used as indentation).

This will break if someone uses an editor on Windows, or doesn't have 
8-space tabs.  It would be better to raise an error if there's a tab in 
a cabal file.

	<b