patch applied (packages/Cabal): On second thoughts, follow the Cabal docs for the syntax of package names

[Simon Marlow]

Tue Aug 22 05:00:25 PDT 2006  Simon Marlow <simonmar at microsoft.com>
  * On second thoughts, follow the Cabal docs for the syntax of package names
  Each package component must now contain at least one letter, a weaker 
  requirement than always beginning with a letter.

    M ./Distribution/Package.hs -5 +4