== sanity test 413k: QoS mkdir exclude prefixes ========== 18:10:01 (1788473401)
lmv.lustre-clilmv-ffff8d1e034bd000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d1e034bd000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d1e034bd000.qos_exclude_prefixes=_temporary