== sanity test 413k: QoS mkdir exclude prefixes ========== 22:50:38 (1767325838)
lmv.lustre-clilmv-ffff91a765651800.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff91a765651800.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff91a765651800.qos_exclude_prefixes=_temporary