anchor.diff:      }
   
       public static void main(String[] args) {
  -        int exitCode = new CommandLine(new ISOCodeResolver()).execute(args);  // <5>
  -        System.exit(exitCode);  // <6>
  +        int exitCode = new CommandLine(new ISOCodeResolver()).execute(args); // <5>
  +        System.exit(exitCode); // <6>
       }
   }
   
  
positive.code: 
  === ISOCodeResolver source code explained
  
  .ISOCodeResolver source code
  [source,java]
  ----
  import picocli.CommandLine;
  import picocli.CommandLine.Command;
  
negative.code: :numbered:
  :toclevels: 1 // show little detail in the TOC, to make this document less intimidating
  :toc-title: Features
  :source-highlighter: rouge
  :rouge-languages: kotlin, groovy, scala
  :icons: font
  :imagesdir: images
  :linkattrs:
  