== sanity test 413k: QoS mkdir exclude prefixes ========== 15:37:38 (1788809858)
lmv.lustre-clilmv-ffff9e196e204000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9e196e204000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9e196e204000.qos_exclude_prefixes=_temporary