patch applied (ghc): Turn on optimisation for stage2 when validating

[Ian Lynagh]

Thu Aug 28 07:23:20 PDT 2008  Ian Lynagh <igloo at earth.li>
  * Turn on optimisation for stage2 when validating
  This brings my validate down from 22mins to 16 mins.
  Compiling stage2 takes longer, but we gain a faster haddock, faster
  running of the tests, and faster building of the utils to be installed.

    M ./mk/validate-settings.mk -1 +1

View patch online:
http://darcs.haskell.org/ghc/_darcs/patches/20080828142320-3fd76-666f319bf21594bd50fad452b93884f1161ca335.gz