== sanity test 413k: QoS mkdir exclude prefixes ========== 04:59:44 (1786957184)
lmv.lustre-clilmv-ffff9d2f327af000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d2f327af000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d2f327af000.qos_exclude_prefixes=_temporary