== sanity test 413k: QoS mkdir exclude prefixes ========== 16:50:43 (1787863843)
lmv.lustre-clilmv-ffff90fc44fe5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff90fc44fe5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff90fc44fe5800.qos_exclude_prefixes=_temporary