code: private String buildMessage( String rawMessage ){
          StringBuilder msg = new StringBuilder();
          if( changeLogName != null ){
              msg.append( changeLogName ).append( ": " );
          }
          if( changeSetName != null ){
              msg.append( changeSetName.replace( changeLogName + "::", "" ) ).append( ": " );
          }
          msg.append( rawMessage );
          return msg.toString();
      }
docs: Build a log message with optional data if it exists.