Fix example.c
diff --git a/example.c b/example.c
index 2e2afaa..b3038ef 100644
--- a/example.c
+++ b/example.c
@@ -125,6 +125,7 @@
                png_image_free(&image);
             else
                free(buffer);
+         }
       }
 
       /* Something went wrong reading or writing the image.  libpng stores a