== sanity test 413k: QoS mkdir exclude prefixes ========== 22:56:05 (1786416965)
lmv.lustre-clilmv-ffff92e8ca252000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff92e8ca252000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff92e8ca252000.qos_exclude_prefixes=_temporary