message: fix(cli): display of boolean flags with default true
  fixes
diff: @@ -133,7 +133,7 @@ const renderOptionList = (options = []) => {
  const renderOptionSpec = option => {
  return (
  <span>
  - --{option.name}
  + --{ option.type === 'boolean' && option.default === true ? `no-${option.name}` : option.name }
  { option.type === 'string' ?
  <span class="option-spec">
  { `=<${option.spec.value}>` }
  