write_options_file (Spec::Runner::OptionParser)

    # File lib/spec/runner/option_parser.rb, line 184
          def write_options_file(options_file)
            File.open(options_file, 'w') do |io|
              io.puts @argv.join("\n")
            end
            @out_stream.puts "\nOptions written to #{options_file}. You can now use these options with:"
            @out_stream.puts "spec --options #{options_file}"
            @options.examples_should_not_be_run
          end