== sanity test 413k: QoS mkdir exclude prefixes ========== 00:05:57 (1764738357)
lmv.lustre-clilmv-ffff9c82c1d93000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9c82c1d93000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9c82c1d93000.qos_exclude_prefixes=_temporary