== sanity test 413k: QoS mkdir exclude prefixes ========== 15:02:24 (1780858944)
lmv.lustre-clilmv-ffff95f12ba9a800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff95f12ba9a800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff95f12ba9a800.qos_exclude_prefixes=_temporary