== sanity test 413k: QoS mkdir exclude prefixes ========== 03:46:51 (1789458411)
lmv.lustre-clilmv-ffff88e3b97fd000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88e3b97fd000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88e3b97fd000.qos_exclude_prefixes=_temporary