num_out
char *num_out(long number);
scanp = num_out((long) va_arg(argptr, int));
scanp = num_out((long) va_arg(argptr, long));
status_line(num_out(chars_saved), " characters saved in buffer.");
n_ptr = num_out((long) getpid());
status_line(num_out(subs), " substitutions.");
error("Illegal line number: ", num_out((long) number));
status_line(num_out((long) line_count), " lines added.");