== sanity test 413k: QoS mkdir exclude prefixes ========== 11:18:42 (1786720722)
lmv.lustre-clilmv-ffff891251a3e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff891251a3e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff891251a3e000.qos_exclude_prefixes=_temporary