anchor.diff:           <header>
               <h1>$humanReadableName</h1>
               <p>Group: $group</p>
  -            <p>Maturity: $maturity</p>
  +            <p>Maturity: $maturityString</p>
               <p class="view"><a href="https://github.com/dart-lang/linter">View the Project on GitHub <small>dart-lang/linter</small></a></p>
               <ul>
                  <li><a href="https://www.dartlang.org/articles/style-guide/">See the <strong>Style Guide</strong></a></li>
  
positive.code:       new File(outPath).writeAsStringSync(generated);
      } else {
        print(generated);
      }
    }
  
  
negative.code: const ruleFootMatter = '''
  In addition, rules can be further distinguished by *maturity*.  Unqualified
  rules are considered stable, while others may be marked **experimental**
  to indicate that they are under review.  Lints that are marked as **deprecated**
  should not be used and are subject to removal in future Linter releases.
  
  Rules can be selectively enabled in the analyzer using
  [analysis options](https://pub.dartlang.org/packages/analyzer)
  