== sanity test 413k: QoS mkdir exclude prefixes ========== 13:22:17 (1772475737)
lmv.lustre-clilmv-ffff9f0b0801f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9f0b0801f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9f0b0801f800.qos_exclude_prefixes=_temporary