== sanity test 413k: QoS mkdir exclude prefixes ========== 20:29:26 (1746145766)
lmv.lustre-clilmv-ffff88012e181000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012e181000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012e181000.qos_exclude_prefixes=_temporary