== sanity test 413k: QoS mkdir exclude prefixes ========== 20:55:36 (1787792136)
lmv.lustre-clilmv-ffff99c209e92800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99c209e92800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99c209e92800.qos_exclude_prefixes=_temporary