== sanity test 413k: QoS mkdir exclude prefixes ========== 10:08:51 (1787321331)
lmv.lustre-clilmv-ffff97ba42a12800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff97ba42a12800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff97ba42a12800.qos_exclude_prefixes=_temporary