== sanity test 413k: QoS mkdir exclude prefixes ========== 02:59:15 (1789455555)
lmv.lustre-clilmv-ffffa018c3406000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffffa018c3406000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffffa018c3406000.qos_exclude_prefixes=_temporary