== sanity test 413k: QoS mkdir exclude prefixes ========== 01:06:08 (1718859968)
lmv.lustre-clilmv-ffff88012a9e6000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff88012a9e6000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff88012a9e6000.qos_exclude_prefixes=_temporary