patch applied (packages/Cabal): Document how Cabal-Version affects behaviour of build-depends

[Ian Lynagh]

Sat Sep 25 19:55:50 PDT 2010  Ben Millwood <haskell at benmachine.co.uk>
  * Document how Cabal-Version affects behaviour of build-depends

    M ./doc/Cabal.markdown -9 +21

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=packages/Cabal;a=darcs_commitdiff;h=20100926025550-809c6-da75b72dfc675aa8a9105972c180264f6e84d530.gz