Dumb arguments error

git-svn-id: https://svn.thoughtbot.com/plugins/paperclip/trunk@184 7bbfaf0e-4d1d-0410-9690-a8bb5f8ef2aa

lib/paperclip.rb

@@ -45,7 +45,7 @@ module Thoughtbot #:nodoc:
     
     class PaperclipError < StandardError #:nodoc:
       attr_accessor :attachment, :reason, :exception
-      def initialize attachment, reason, exception
+      def initialize attachment, reason, exception = nil
         @attachment, @reason, @exception = *args
       end
     end