append_features (ActiveSupport::CoreExtensions::String::StartsEndsWith)

    # File lib/active_support/core_ext/string/starts_ends_with.rb, line 6
            def self.append_features(base)
              if '1.8.7 and up'.respond_to?(:start_with?)
                base.class_eval do
                  alias_method :starts_with?, :start_with?
                  alias_method :ends_with?, :end_with?
                end
              else
                super
                base.class_eval do
                  alias_method :start_with?, :starts_with?
                  alias_method :end_with?, :ends_with?
                end
              end
            end