== sanity test 413k: QoS mkdir exclude prefixes ========== 06:43:00 (1768131780)
lmv.lustre-clilmv-ffff9bae2ac62000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9bae2ac62000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9bae2ac62000.qos_exclude_prefixes=_temporary