INV_IMMUTE
(void) nvlist_add_boolean_value(nvl, INV_IMMUTE,
(void) nvlist_add_boolean_value(nvl, INV_IMMUTE,
(void) nvlist_add_boolean_value(nvl, INV_IMMUTE, B_TRUE);
e = nvlist_lookup_boolean_value(props[pn], INV_IMMUTE, &pim);
INV_IMMUTE, strerror(e));