[ci skip] Polish changes from PR #3278
diff --git a/system/libraries/Image_lib.php b/system/libraries/Image_lib.php
index d653b16..529532e 100644
--- a/system/libraries/Image_lib.php
+++ b/system/libraries/Image_lib.php
@@ -1212,7 +1212,7 @@
 			imagecopymerge($src_img, $wm_img, $x_axis, $y_axis, 0, 0, $wm_width, $wm_height, $this->wm_opacity);
 		}
 
- 		// We can preserve transparency for PNG images
+		// We can preserve transparency for PNG images
 		if ($this->image_type === 3)
 		{
 			imagealphablending($src_img, FALSE);
@@ -1803,4 +1803,4 @@
 }
 
 /* End of file Image_lib.php */
-/* Location: ./system/libraries/Image_lib.php */
+/* Location: ./system/libraries/Image_lib.php */
\ No newline at end of file