r23579: Up to now, the "allparameters" argument to lp_next_parameter was

r23579: Up to now, the "allparameters" argument to lp_next_parameter was
not effective for the global section (snum < 0). This checkin
makes it effective for the global section, too.

This does not produce changes in the results of the present calls of
lp_next_parameter: Beside the new use in utils/net_conf.c (which is
hereby fixed), the only calls of lp_next_parameter are in web/swat.c,
where it is effectively always called with allparameters == 1.

Michael