Fix error message for database configuration missing.

lib/Cake/View/Errors/missing_datasource_config.ctp

@@ -19,7 +19,7 @@
 <h2><?php echo __d('cake_dev', 'Missing Datasource Configuration'); ?></h2>
 <p class="error">
 	<strong><?php echo __d('cake_dev', 'Error'); ?>: </strong>
-	<?php echo __d('cake_dev', 'The datasource configuration %1$s was not found in databases.php.', '<em>' . $config . '</em>'); ?>
+	<?php echo __d('cake_dev', 'The datasource configuration %1$s was not found in database.php.', '<em>' . $config . '</em>'); ?>
 </p>
 <p class="notice">
 	<strong><?php echo __d('cake_dev', 'Notice'); ?>: </strong>