Document that orientation data is removed by exif_transpose()

Author: radarhere

src/PIL/ImageOps.py

@@ -572,8 +572,11 @@ def solarize(image, threshold=128):
 
 def exif_transpose(image):
     """
-    If an image has an EXIF Orientation tag, return a new image that is
-    transposed accordingly. Otherwise, return a copy of the image.
+    If an image has an EXIF Orientation tag return a new image that is
+    transposed accordingly. The new image will have the orientation data
+    removed.
+
+    Otherwise, return a copy of the image.
 
     :param image: The image to transpose.
     :return: An image.