== sanity test 413k: QoS mkdir exclude prefixes ========== 09:28:57 (1790947737)
lmv.lustre-clilmv-ffff9d2d4dbc1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d2d4dbc1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d2d4dbc1000.qos_exclude_prefixes=_temporary