class RSpec::Core::Formatters::Loader

def setup_default(output_stream, deprecation_stream)
  if @formatters.empty?
    add @default_formatter, output_stream
  end
  unless @formatters.any? { |formatter| DeprecationFormatter === formatter }
    add DeprecationFormatter, deprecation_stream, output_stream
  end
  @formatters.each do |formatter|
    @reporter.register_listener formatter, *RSpec::Core::Reporter::NOTIFICATIONS
  end
  @setup = true
end