== sanity test 413k: QoS mkdir exclude prefixes ========== 14:27:32 (1744136852)
lmv.lustre-clilmv-ffff88012a59b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012a59b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012a59b000.qos_exclude_prefixes=_temporary