== sanity test 413k: QoS mkdir exclude prefixes ========== 10:34:26 (1783521266)
lmv.lustre-clilmv-ffff930c11cd4800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff930c11cd4800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff930c11cd4800.qos_exclude_prefixes=_temporary