patch applied (packages/Cabal): Adjust registration to allow packages with no modules or objects

[Ian Lynagh]

Mon Aug  4 08:58:26 PDT 2008  Duncan Coutts <duncan at haskell.org>
  * Adjust registration to allow packages with no modules or objects
  So ghc-pkg does not complain about missing files and dirs.

    M ./Distribution/Simple/Register.hs -3 +9

View patch online:
http://darcs.haskell.org/packages/Cabal/_darcs/patches/20080804155826-adfee-f10d1dbfda60cbd5d2f1d2e0352e257071a57f54.gz