== sanity test 413k: QoS mkdir exclude prefixes ========== 05:19:01 (1713086341)
lmv.lustre-clilmv-ffff8800950e6000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800950e6000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800950e6000.qos_exclude_prefixes=_temporary