== sanity test 413k: QoS mkdir exclude prefixes ========== 23:43:44 (1789271024)
lmv.lustre-clilmv-ffff9742c4811000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9742c4811000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9742c4811000.qos_exclude_prefixes=_temporary