== sanity test 413k: QoS mkdir exclude prefixes ========== 14:57:57 (1788893877)
lmv.lustre-clilmv-ffff9fbac552b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9fbac552b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9fbac552b000.qos_exclude_prefixes=_temporary