== sanity test 413k: QoS mkdir exclude prefixes ========== 02:11:53 (1788847913)
lmv.lustre-clilmv-ffff93d6f8df9000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff93d6f8df9000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff93d6f8df9000.qos_exclude_prefixes=_temporary