anchor.diff:  
   === ISOCodeResolver source code explained
   
  -.ISOCodeResolver source code
  -[source,java]
  +.Java
  +[source,java,role="primary"]
   ----
   import picocli.CommandLine;
   import picocli.CommandLine.Command;
  
positive.code:                     code.toLowerCase(), new Locale(code).getDisplayLanguage());
          }
      }
  }
  ----
  
  
negative.code:     }
  
      public static void main(String[] args) {
          int exitCode = new CommandLine(new ISOCodeResolver()).execute(args); // <5>
          System.exit(exitCode); // <6>
      }
  }
  
  