== sanity test 413k: QoS mkdir exclude prefixes ========== 23:18:11 (1787714291)
lmv.lustre-clilmv-ffff8ca6c732e000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8ca6c732e000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8ca6c732e000.qos_exclude_prefixes=_temporary