== sanity test 413k: QoS mkdir exclude prefixes ========== 14:23:41 (1790792621)
lmv.lustre-clilmv-ffff889e60a6f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff889e60a6f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff889e60a6f800.qos_exclude_prefixes=_temporary