== sanity test 413k: QoS mkdir exclude prefixes ========== 02:04:15 (1788761055)
lmv.lustre-clilmv-ffff8ff0c91c1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ff0c91c1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ff0c91c1000.qos_exclude_prefixes=_temporary