== sanity test 413k: QoS mkdir exclude prefixes ========== 16:32:20 (1775766740)
lmv.lustre-clilmv-ffff9fa7d143f000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9fa7d143f000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9fa7d143f000.qos_exclude_prefixes=_temporary