== sanity test 413k: QoS mkdir exclude prefixes ========== 14:42:17 (1787856137)
lmv.lustre-clilmv-ffffa09d27c27800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa09d27c27800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa09d27c27800.qos_exclude_prefixes=_temporary