patch applied (cabal): don't pass unrecognized arguments to ./configure

[Ross Paterson]

Tue Jun  5 16:15:00 PDT 2007  Ross Paterson <ross at soi.city.ac.uk>
  * don't pass unrecognized arguments to ./configure
  
  They are now reported as errors.  To pass them to configure, use the
  new --configure-option flag.
  
  Non-option arguments are still ignored (#90 and #113), as with all of
  the other commands.

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