== sanity test 413k: QoS mkdir exclude prefixes ========== 07:53:31 (1715342011)
lmv.lustre-clilmv-ffff88007c281800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88007c281800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88007c281800.qos_exclude_prefixes=_temporary