== sanity test 413k: QoS mkdir exclude prefixes ========== 10:46:40 (1787842000)
lmv.lustre-clilmv-ffff99cd4dcd2800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff99cd4dcd2800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff99cd4dcd2800.qos_exclude_prefixes=_temporary