== sanity test 413k: QoS mkdir exclude prefixes ========== 10:40:22 (1788619222)
lmv.lustre-clilmv-ffff95b303e45000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff95b303e45000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff95b303e45000.qos_exclude_prefixes=_temporary