anchor.diff:      $diffContentOutput.empty().append($stdout, $stderr, $status);
   
       const $diffOutputFilenames = $('#diff-output-filenames');
  -    $diffOutputFilenames.html(makeOutputFilenames(stdout,stderr,status));
  +    $diffOutputFilenames.html($makeOutputFilenames(stdout, stderr, status));
   
       $(`#radio_${stdout.id}`).click(() => review.selectFilename(stdout));
       $(`#radio_${stderr.id}`).click(() => review.selectFilename(stderr));
  
positive.code:   const lines = (str) => str.replace(/\n$/, '').split(/\r?\n/);
  
    //- - - - - - - - - - - - - - - - - - - - - - - - -
    const makeOutputFilenames = (stdout, stderr, status) => {
      let html = '';
      html += '<table class="sss filenames">';
      html += makeOutputFilename(stdout);
      html += makeOutputFilename(stderr);
      html += makeOutputFilename(status);
      html += '</table>';
      return html;
    };
  
    const makeOutputFilename = (diff) => {
      return `<tr><td class="diff-filename" data-filename="${diff.filename}" id="radio_${diff.id}">${diff.filename}</td></tr>`;
    };
  
  });
  
negative.code: 
    //- - - - - - - - - - - - - - - - - - - - - - - - -
    const refreshOutputCallback = (event) => {
      const stdout = makeNoDiffOutput('stdout', event.stdout.content);
      const stderr = makeNoDiffOutput('stderr', event.stderr.content);
      const status = makeNoDiffOutput('status', event.status);
  
      const $diffContentOutput = $('#diff-content-output');
      const $stdout = review.makeDiffFileContent(stdout);
  