== sanity test 413k: QoS mkdir exclude prefixes ========== 09:35:06 (1787405706)
lmv.lustre-clilmv-ffff9dc3c2c8b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9dc3c2c8b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9dc3c2c8b000.qos_exclude_prefixes=_temporary