== sanity test 413k: QoS mkdir exclude prefixes ========== 10:10:17 (1742911817)
lmv.lustre-clilmv-ffff88013695c800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88013695c800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88013695c800.qos_exclude_prefixes=_temporary