== sanity test 413k: QoS mkdir exclude prefixes ========== 18:54:31 (1746140071)
lmv.lustre-clilmv-ffff88012aba7800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012aba7800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012aba7800.qos_exclude_prefixes=_temporary