== sanity test 413k: QoS mkdir exclude prefixes ========== 12:47:27 (1790959647)
lmv.lustre-clilmv-ffff9758d00ef800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9758d00ef800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9758d00ef800.qos_exclude_prefixes=_temporary