== sanity test 413k: QoS mkdir exclude prefixes ========== 03:35:25 (1734683725)
lmv.lustre-clilmv-ffff8800b6cff800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800b6cff800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800b6cff800.qos_exclude_prefixes=_temporary