== sanity test 413k: QoS mkdir exclude prefixes ========== 08:56:17 (1787403377)
lmv.lustre-clilmv-ffff93d602d6e800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff93d602d6e800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff93d602d6e800.qos_exclude_prefixes=_temporary