== sanity test 413k: QoS mkdir exclude prefixes ========== 21:56:03 (1767322563)
lmv.lustre-clilmv-ffff9cf108302000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9cf108302000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9cf108302000.qos_exclude_prefixes=_temporary