lprng: how does one get Z in the control file?

[Walter Tautz <wtautz@math.uwaterloo.ca>]

 I am running lprng version 3.7.4.

Here is the printcap:
 

 ljp_3016|ps_mfcf|psm|ljm|lp2up_mfcf|lp2up|2up|lp_mfcf|lpm|l|lp:\
         :sd=/var/spool/lpd/ljp_3016:\
	     :mx#0:\
	     :rm=print.math:\
	     :rp=ljp_3016:\
	     :bk=true:\
	     :nline_after_file=true:\
	     :lpd_bounce=true:\


putting stuff like append_z seems to get Z to showup but
not with the arguments called. i would like to have users
be able to run with -Z options on the command line.

Is there a compile time default or some other way to turn on
Z options in the control files?

-walter