== sanity test 413k: QoS mkdir exclude prefixes ========== 06:09:05 (1784196545)
lmv.lustre-clilmv-ffff92b2d1da1000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff92b2d1da1000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff92b2d1da1000.qos_exclude_prefixes=_temporary