== sanity test 413k: QoS mkdir exclude prefixes ========== 04:22:40 (1738488160)
lmv.lustre-clilmv-ffff88007c0a3800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88007c0a3800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88007c0a3800.qos_exclude_prefixes=_temporary