== sanity test 413k: QoS mkdir exclude prefixes ========== 23:24:22 (1789356262)
lmv.lustre-clilmv-ffff934384d56000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff934384d56000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff934384d56000.qos_exclude_prefixes=_temporary