== sanity test 413k: QoS mkdir exclude prefixes ========== 02:03:32 (1744178612)
lmv.lustre-clilmv-ffff880091e7b800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff880091e7b800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff880091e7b800.qos_exclude_prefixes=_temporary