== sanity test 413k: QoS mkdir exclude prefixes ========== 20:59:39 (1789693179)
lmv.lustre-clilmv-ffff961fc90c5800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff961fc90c5800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff961fc90c5800.qos_exclude_prefixes=_temporary