== sanity test 413k: QoS mkdir exclude prefixes ========== 22:27:24 (1788661644)
lmv.lustre-clilmv-ffff945138f77000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff945138f77000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff945138f77000.qos_exclude_prefixes=_temporary