== sanity test 413k: QoS mkdir exclude prefixes ========== 22:05:26 (1749607526)
lmv.lustre-clilmv-ffff8800a612f800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800a612f800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800a612f800.qos_exclude_prefixes=_temporary