make sure link_to_image is deprecated as well as link_image_to

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@5361 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_view/helpers/url_helper.rb

@@ -174,7 +174,8 @@ def link_image_to(src, options = {}, html_options = {}, *parameters_for_method_r
       end
 
       alias_method :link_to_image, :link_image_to
-      deprecate :link_image_to => :link_to_image
+      deprecate :link_to_image => "use link_to(image_tag(...), url)",
+        :link_image_to => "use link_to(image_tag(...), url)"
 
       # Creates a link tag of the given +name+ using a URL created by the set of
       # +options+ unless the current request uri is the same as the links, in