== sanity test 413k: QoS mkdir exclude prefixes ========== 08:36:45 (1787143005)
lmv.lustre-clilmv-ffff8a8985328800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8a8985328800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8a8985328800.qos_exclude_prefixes=_temporary