== sanity test 413k: QoS mkdir exclude prefixes ========== 19:41:14 (1786750874)
lmv.lustre-clilmv-ffff99bda034e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99bda034e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99bda034e000.qos_exclude_prefixes=_temporary