Correct example for path parameters to use strings as keys in the hash rather...

Correct example for path parameters to use strings as keys in the hash rather than symbols. Closes #7160 [akaspick]

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@8314 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_controller/request.rb

@@ -297,11 +297,12 @@ def symbolized_path_parameters
       @symbolized_path_parameters ||= path_parameters.symbolize_keys
     end
 
-    # Returns a hash with the parameters used to form the path of the request 
+    # Returns a hash with the parameters used to form the path of the request.
+    # Returned hash keys are strings.  See <tt>symbolized_path_parameters</tt> for symbolized keys.
     #
     # Example: 
     #
-    #   {:action => 'my_action', :controller => 'my_controller'}
+    #   {'action' => 'my_action', 'controller' => 'my_controller'}
     def path_parameters
       @path_parameters ||= {}
     end