jdorje: Make the CITY_PRODUCTION_CHANGED event defau...

This is an automated notification of a change to freeciv cvs, 
on Thu Aug 19 17:15:36 PDT 2004 = Fri Aug 20 00:15:36 2004 (GMT)
by Jason Dorje Short <jshort@xxxxxxxxxxxxxx>

---- Files affected:

freeciv/client options.c

---- Log message:
      Tag: HEAD

Make the CITY_PRODUCTION_CHANGED event default to showing only on the
game output line, not the messages dialog.

Patch by Mateusz Stefek in PR#9736.