append_features

# File activesupport/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