== sanity test 413k: QoS mkdir exclude prefixes ========== 08:24:28 (1712147068)
lmv.lustre-clilmv-ffff8801309df000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8801309df000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8801309df000.qos_exclude_prefixes=_temporary