Whitespace cleanup for code consistency
diff --git a/system/helpers/captcha_helper.php b/system/helpers/captcha_helper.php
index c0e3798..19ec0c7 100644
--- a/system/helpers/captcha_helper.php
+++ b/system/helpers/captcha_helper.php
@@ -87,7 +87,7 @@
 
 		$current_dir = @opendir($img_path);
 
-		while($filename = @readdir($current_dir))
+		while ($filename = @readdir($current_dir))
 		{
 			if ($filename != "." and $filename != ".." and $filename != "index.html")
 			{