== sanity test 413k: QoS mkdir exclude prefixes ========== 19:05:18 (1784415918)
lmv.lustre-clilmv-ffff8a4d06892800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a4d06892800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a4d06892800.qos_exclude_prefixes=_temporary