anchor.diff:  [source,groovy]
   ----
   class Args {
  -    @Option(names = ["-h", "--help"], usageHelp=true, description="Print this help and exit")
  +    @Option(names = ["-h", "--help"], usageHelp=true,
  +      description = "Print this help and exit")
       boolean helpRequested = false;
   }
   ----
  
positive.code: 
  [source,kotlin]
  ----
  class Args {
      @field:Option(names = arrayOf("-h", "--help"), usageHelp = true,
                     description = arrayOf("Print this help and exit"))
      var helpRequested = false;
  }
  ----
  (Kotlin https://blog.jetbrains.com/kotlin/2017/06/early-access-program-for-kotlin-1-2-has-been-started/[1.2 may support] array literals like `names = ["-h", "--help"]` in annotations.)
  
negative.code: @Option(names = "-x", description = "number of repetitions")
  @Field int count;
  
  @Option(names = ["-h", "--help"], usageHelp = true,
    description = "print this help message and exit")
  @Field boolean helpRequested;
  
  //if (helpRequested) { // not necessary: PicocliBaseScript takes care of this
  