== sanity test 413k: QoS mkdir exclude prefixes ========== 18:49:40 (1786834180)
lmv.lustre-clilmv-ffff8d21dee5a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8d21dee5a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8d21dee5a800.qos_exclude_prefixes=_temporary