== sanity test 413k: QoS mkdir exclude prefixes ========== 14:34:55 (1782930895)
lmv.lustre-clilmv-ffff9081c062a000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff9081c062a000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff9081c062a000.qos_exclude_prefixes=_temporary