== sanity test 413k: QoS mkdir exclude prefixes ========== 20:05:09 (1786320309)
lmv.lustre-clilmv-ffff9ac12cdf9800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9ac12cdf9800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9ac12cdf9800.qos_exclude_prefixes=_temporary