f_tty
{ "tty", f_tty, 0 },
void f_tty(struct info *);
{ "new", f_tty, 0 },
{ "old", f_tty, 0 },
void f_tty(struct info *);
{ "new", f_tty, 0 },
{ "old", f_tty, 0 },
{ "tty", f_tty, 0 },