== sanity test 413k: QoS mkdir exclude prefixes ========== 01:06:01 (1789189561)
lmv.lustre-clilmv-ffff919010436000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff919010436000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff919010436000.qos_exclude_prefixes=_temporary