Rule "class-style" will be ignored from gulp task with false or none value

[WuglyakBolgoink]

sidebar.html
1:12 error value must match the format: underscore class-style

<div class="info-banner clearfix">

.pipe(htmlLint({
        // htmllintrc: ".htmllintrc",
        // useHtmllintrc: true,
        rules: {
          'attr-name-style': false,
          'class-style': false
        }
        // plugins: [],
        // limitFiles: `Number.MAX_VALUE`,
        // limitIssuesPerFile: `Number.MAX_VALUE`,
        // limitIssues: `Number.MAX_VALUE`,
      }))

with 'class-style': 'none' i got error!

[10:35:07] ngTemplates sidebar.html
{ [Error: Could not lint html file: sidebar.html]
  message: 'Could not lint html file: sidebar.html',
  showStack: false,
  showProperties: true,
  plugin: 'gulp-html-lint',
  __safety: { toString: [Function: bound ] } }