== sanity test 413k: QoS mkdir exclude prefixes ========== 15:03:16 (1786042996)
lmv.lustre-clilmv-ffff9941efc2d800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9941efc2d800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9941efc2d800.qos_exclude_prefixes=_temporary