form - the form tree associated with
the program objects's *.pane file
tbname - name of toolbox object in which program object exists
oname - name of program object
usage_additions - usage_additions() routine for program
(for kroutines & xvroutines) NULL otherwise
OUTPUT
none
RETURN VALUE
TRUE if successful, FALSE otherwise.
DESCRIPTION
Given a software object, interprets the usage for the
program from its *.pane file, and prints the usage to
the file given. It might be kstderr (for -U on cmd line),
the file associated with the man page (for kman), or the
file associated with the help page (for online help).