# /root/statsbug (v1 stack: kldload ng_one2many; stock INVARIANTS kernel)
GET_STATS linkNum=0  -> Undefined error: 0 (expected: OK)
GET_STATS linkNum=1  -> Invalid argument (expected: OK, got rejection => BUG)
GET_STATS linkNum=-1 -> Undefined error: 0 (expected: OK for 'one' link)
EXIT=0