== sanity test 413k: QoS mkdir exclude prefixes ========== 04:06:45 (1746086805)
lmv.lustre-clilmv-ffff880098ad2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff880098ad2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff880098ad2000.qos_exclude_prefixes=_temporary