== sanity test 413k: QoS mkdir exclude prefixes ========== 19:19:59 (1787613599)
lmv.lustre-clilmv-ffff8e2d82bee800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8e2d82bee800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8e2d82bee800.qos_exclude_prefixes=_temporary