Add maximum report length

inc/config.php

@@ -937,6 +937,9 @@
 	// Number of reports you can create at once.
 	$config['report_limit'] = 3;
 
+	// Maximum number of characters per report.
+	$config['report_max_length'] = 30;
+
 	// Allow unfiltered HTML in board subtitle. This is useful for placing icons and links.
 	$config['allow_subtitle_html'] = false;
 

post.php

@@ -488,7 +488,7 @@ if (isset($_POST['delete'])) {
 	$reason = escape_markup_modifiers($_POST['reason']);
 	markup($reason);
 
-	if (strlen($reason) > 30) {
+	if (mb_strlen($reason) > $config['report_max_length']) {
 		error($config['error']['toolongreport']);
 	}