patch applied (packages/Cabal): Components of a package name should not begin with a digit

[Simon Marlow]

Tue Aug 22 04:37:19 PDT 2006  Simon Marlow <simonmar at microsoft.com>
  * Components of a package name should not begin with a digit
  Avoids ambiguities with package identifiers like "foo-1" (the 1 is the
  version number). 

    M ./Distribution/Package.hs -2 +8