== sanity test 413k: QoS mkdir exclude prefixes ========== 08:56:16 (1788785776)
lmv.lustre-clilmv-ffff8975ed3a3000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8975ed3a3000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8975ed3a3000.qos_exclude_prefixes=_temporary