== sanity test 413k: QoS mkdir exclude prefixes ========== 08:15:03 (1715343303)
lmv.lustre-clilmv-ffff88009b116000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88009b116000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88009b116000.qos_exclude_prefixes=_temporary