== sanity test 413k: QoS mkdir exclude prefixes ========== 14:34:15 (1788806055)
lmv.lustre-clilmv-ffff9e09f96d4000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e09f96d4000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e09f96d4000.qos_exclude_prefixes=_temporary