Follow up to r68324. Fix undefined constant.

diff --git a/includes/media/PNG.php b/includes/media/PNG.php
index 927f173..57f4dc0 100644 (file)
--- a/includes/media/PNG.php
+++ b/includes/media/PNG.php
@@ -58,7 +58,7 @@ class PNGHandler extends BitmapHandler {
                $metadata = unserialize($image->getMetadata());
                wfRestoreWarnings();
 
-               if( !metadata || $metadata['frameCount'] == 0 )
+               if( !$metadata || $metadata['frameCount'] <= 0 )
                        return $original;
 
                $info = array();