== sanity test 413k: QoS mkdir exclude prefixes ========== 07:48:05 (1790682485)
lmv.lustre-clilmv-ffff89e9738c9000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff89e9738c9000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff89e9738c9000.qos_exclude_prefixes=_temporary