== sanity test 413k: QoS mkdir exclude prefixes ========== 12:55:23 (1781628923)
lmv.lustre-clilmv-ffff96ff20d83000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff96ff20d83000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff96ff20d83000.qos_exclude_prefixes=_temporary