== sanity test 413k: QoS mkdir exclude prefixes ========== 21:28:07 (1787794087)
lmv.lustre-clilmv-ffff89e948c9b000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff89e948c9b000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff89e948c9b000.qos_exclude_prefixes=_temporary