--internal-topics <String: list>      Commalist>      Comma-separated list of internal topics  
                                        to 
                                      to delete. Must be a subset of the     
                                        internal the
                                      internal topics marked for deletion by 
                                        theby
                                      the default behaviour. To view these   
                                        topics,  (do a dry-run without this      
                                        option.  
                                      option to view these topics).