== sanity test 413k: QoS mkdir exclude prefixes ========== 23:02:43 (1787799763)
lmv.lustre-clilmv-ffff9b8cf6181000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9b8cf6181000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9b8cf6181000.qos_exclude_prefixes=_temporary