Fix a typo with the dataset name

db-backends.php

@@ -10,7 +10,7 @@ function noblogs_load_backends($hashptr) {
        "user" => $backend['user'],
        "password" => $backend['password'],
        "name" => $backend['name'],
-       "dataset" => $backend,
+       "dataset" => $backend_name,
        "read" => 1,
        "write" => 1,
        "timeout" => 10