== sanity test 413k: QoS mkdir exclude prefixes ========== 22:45:06 (1786675506)
lmv.lustre-clilmv-ffff9dd8d9330800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9dd8d9330800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9dd8d9330800.qos_exclude_prefixes=_temporary