== sanity test 413k: QoS mkdir exclude prefixes ========== 02:40:45 (1788849645)
lmv.lustre-clilmv-ffff8e0edd4aa800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8e0edd4aa800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8e0edd4aa800.qos_exclude_prefixes=_temporary