== sanity test 413k: QoS mkdir exclude prefixes ========== 15:19:50 (1773688790)
lmv.lustre-clilmv-ffff9f7888dd8800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9f7888dd8800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9f7888dd8800.qos_exclude_prefixes=_temporary