== sanity test 413k: QoS mkdir exclude prefixes ========== 09:31:40 (1786195900)
lmv.lustre-clilmv-ffff8f84ca524000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f84ca524000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f84ca524000.qos_exclude_prefixes=_temporary