== sanity test 413k: QoS mkdir exclude prefixes ========== 03:31:24 (1746084684)
lmv.lustre-clilmv-ffff8800875ea000.qos_exclude_prefixes=+abc:123:foo bar
lmv.lustre-clilmv-ffff8800875ea000.qos_exclude_prefixes=-abc:123:foo bar
lmv.lustre-clilmv-ffff8800875ea000.qos_exclude_prefixes=_temporary