== sanity test 413k: QoS mkdir exclude prefixes ========== 17:37:03 (1786570623)
lmv.lustre-clilmv-ffff8d7593646800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d7593646800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d7593646800.qos_exclude_prefixes=_temporary