Use a sparse image keymap

* lisp/image.el (image-map): Use a sparse keymap.

diff --git a/lisp/image.el b/lisp/image.el
index 4f2733adb7e3b58226e4f5f0d6f9e47a187287d6..1b07ee2491e75f58296bd0828ad6575b2aca3dfe 100644 (file)
--- a/lisp/image.el
+++ b/lisp/image.el
@@ -141,7 +141,7 @@ based on the font pixel size."
 
 ;; Map put into text properties on images.
 (defvar image-map
-  (let ((map (make-keymap)))
+  (let ((map (make-sparse-keymap)))
     (define-key map "-" 'image-decrease-size)
     (define-key map "+" 'image-increase-size)
     (define-key map "r" 'image-rotate)