== sanity test 413k: QoS mkdir exclude prefixes ========== 00:17:00 (1763356620)
lmv.lustre-clilmv-ffff9a8c88057800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9a8c88057800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9a8c88057800.qos_exclude_prefixes=_temporary