== sanity test 413k: QoS mkdir exclude prefixes ========== 22:55:08 (1746154508)
lmv.lustre-clilmv-ffff88012a442000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012a442000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012a442000.qos_exclude_prefixes=_temporary