. Remove dependencies on bash, HylaFAX builds and (reportedly) runs
fine with /bin/sh.
. Add a knob (PAGESIZE to correspond to the HylaFAX configure variable)
so one can choose a paper size other than US Letter.
. Use noninteractive configure when building in BATCH mode.
The PR also suggests adding an option to install hfaxd setuid so it
can be run from inetd. This seems bogus though as inetd.conf allows
one to specify the user to start the process as.