== sanity test 413k: QoS mkdir exclude prefixes ========== 08:51:05 (1787403065)
lmv.lustre-clilmv-ffff8b0402b8f000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8b0402b8f000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8b0402b8f000.qos_exclude_prefixes=_temporary