== sanity test 413k: QoS mkdir exclude prefixes ========== 10:19:33 (1790950773)
lmv.lustre-clilmv-ffff8fd5b8ce2800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8fd5b8ce2800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8fd5b8ce2800.qos_exclude_prefixes=_temporary