== sanity test 413k: QoS mkdir exclude prefixes ========== 06:18:57 (1785406737)
lmv.lustre-clilmv-ffff922fc8db7000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff922fc8db7000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff922fc8db7000.qos_exclude_prefixes=_temporary