== sanity test 413k: QoS mkdir exclude prefixes ========== 03:58:49 (1782633529)
lmv.lustre-clilmv-ffff8f5944e81800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8f5944e81800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8f5944e81800.qos_exclude_prefixes=_temporary