== sanity test 413k: QoS mkdir exclude prefixes ========== 14:17:51 (1783448271)
lmv.lustre-clilmv-ffff97b582c70800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff97b582c70800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff97b582c70800.qos_exclude_prefixes=_temporary