== sanity test 413k: QoS mkdir exclude prefixes ========== 12:25:23 (1788366323)
lmv.lustre-clilmv-ffff98a00484e800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff98a00484e800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff98a00484e800.qos_exclude_prefixes=_temporary