== sanity test 413k: QoS mkdir exclude prefixes ========== 21:46:07 (1767321967)
lmv.lustre-clilmv-ffff8925e6dbd000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8925e6dbd000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8925e6dbd000.qos_exclude_prefixes=_temporary