== sanity test 413k: QoS mkdir exclude prefixes ========== 15:35:35 (1790883335)
lmv.lustre-clilmv-ffff955f4a348800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff955f4a348800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff955f4a348800.qos_exclude_prefixes=_temporary