== sanity test 413k: QoS mkdir exclude prefixes ========== 07:28:28 (1789385308)
lmv.lustre-clilmv-ffff8a3672452000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a3672452000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a3672452000.qos_exclude_prefixes=_temporary