== sanity test 413k: QoS mkdir exclude prefixes ========== 13:57:29 (1788544649)
lmv.lustre-clilmv-ffff9d7ec9045000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9d7ec9045000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9d7ec9045000.qos_exclude_prefixes=_temporary