Function backsp

outdated/sys/mac/mttymain.c:487–495

}

void
backsp(void)
{
    char eraser[] = { CHAR_BS, CHAR_BLANK, CHAR_BS, 0 };
    short err;

    err = add_tty_string(_mt_window, eraser);
    err = update_tty(_mt_window);
}

void
msmsg(const char *str, ...)