[ci skip]Correct variables in the sample code

actionpack/lib/action_dispatch/http/mime_type.rb

@@ -45,8 +45,8 @@ def fetch(type)
   #
   #       respond_to do |format|
   #         format.html
-  #         format.ics { render text: post.to_ics, mime_type: Mime::Type["text/calendar"]  }
-  #         format.xml { render xml: @people }
+  #         format.ics { render text: @post.to_ics, mime_type: Mime::Type["text/calendar"]  }
+  #         format.xml { render xml: @post }
   #       end
   #     end
   #   end