== sanity test 413k: QoS mkdir exclude prefixes ========== 21:26:02 (1786757162)
lmv.lustre-clilmv-ffff9ac7dd5ab000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9ac7dd5ab000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9ac7dd5ab000.qos_exclude_prefixes=_temporary