== sanity test 413k: QoS mkdir exclude prefixes ========== 06:56:19 (1787396179)
lmv.lustre-clilmv-ffff8a7b682c5000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a7b682c5000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a7b682c5000.qos_exclude_prefixes=_temporary