== sanity test 413k: QoS mkdir exclude prefixes ========== 11:34:32 (1781624072)
lmv.lustre-clilmv-ffff972f7c0c2000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff972f7c0c2000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff972f7c0c2000.qos_exclude_prefixes=_temporary