== sanity test 413k: QoS mkdir exclude prefixes ========== 09:50:35 (1713448235)
lmv.lustre-clilmv-ffff8800afed3800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800afed3800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800afed3800.qos_exclude_prefixes=_temporary