== sanity test 413k: QoS mkdir exclude prefixes ========== 21:38:13 (1781228293)
lmv.lustre-clilmv-ffff9dafc2da0000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9dafc2da0000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9dafc2da0000.qos_exclude_prefixes=_temporary