== sanity test 413k: QoS mkdir exclude prefixes ========== 08:30:38 (1744893038)
lmv.lustre-clilmv-ffff8800a98b4000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800a98b4000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800a98b4000.qos_exclude_prefixes=_temporary