== sanity test 413k: QoS mkdir exclude prefixes ========== 19:50:46 (1786837846)
lmv.lustre-clilmv-ffff958f14377000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff958f14377000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff958f14377000.qos_exclude_prefixes=_temporary