patch applied (packages/Cabal): Default to Haskell98 for GHC 7.x

[Ian Lynagh]

Tue Oct 12 19:22:58 PDT 2010  Duncan Coutts <duncan at haskell.org>
  * Default to Haskell98 for GHC 7.x
  GHC 7 defaults to Haskell2010, we stick with 98 for the moment.
  We will later introduce a new language field to control this.

    M ./Distribution/Simple/GHC.hs +3

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=packages/Cabal;a=darcs_commitdiff;h=20101013022258-adfee-44dccf0203c6be99447a64a4e08f0b48408210a9.gz