class RSpec::Core::Formatters::ExceptionPresenter

def exception_lines
  @exception_lines ||= begin
    lines = []
    lines << "#{exception_class_name}:" unless exception_class_name =~ /RSpec/
    encoded_string(exception_message_string(exception)).split("\n").each do |line|
      lines << (line.empty? ? line : "  #{line}")
    end
    lines
  end
end