anchor.diff:  The listing below provides code samples for the three options mentioned above:
   
   .Java 8
  -[source,java,role=primary]
  +[source,java,role="primary"]
   ----
   import static com.github.stefanbirkner.systemlambda.SystemLambda.withEnvironmentVariable;
   // ...
  
positive.code: 
  For example, to clarify that a <<Required Subcommands,subcommand is mandatory>>, an application may specify `COMMAND`, without the `[` and `]` brackets:
  
  .Java / Kotlin
  [source,java,role="primary"]
  ----
  @Command(name = "git", synopsisSubcommandLabel = "COMMAND")
  class Git { /* ... */ }
  
negative.code: 
  Annotation example:
  
  //.Java / Kotlin
  //[source,java,role="primary"]
  [source,java]
  ----
  @Command(name = "i18n-demo", resourceBundle = "my.org.I18nDemo_Messages")
  class I18nDemo {}
  