Function group_ctor

tools/ifconfig/ifgroup.c:203–212

static struct option group_gopt = { "g:", "[-g groupname]", printgroup };

static __constructor void
group_ctor(void)
{
	int i;

	for (i = 0; i < nitems(group_cmds);  i++)
		cmd_register(&group_cmds[i]);
	af_register(&af_group);
	opt_register(&group_gopt);
}