code: public void appendSuffix(int tl, int td, StringBuffer sb) {
      if (dr.scopeData != null) {
        int ix = tl * 3 + td;
        ScopeData sd = dr.scopeData[ix];
        if (sd != null) {
          String suffix = sd.suffix;
          if (suffix != null) {
            if (trace) {
              System.out.println("appendSuffix '" + suffix + "'");
            }
            sb.append(suffix);
          }
        }
      }
    }
docs: Append the appropriate suffix to the string builder, depending on whether and
  how a limit and direction are to be displayed.
  
  @param tl how and whether to display the time limit
  @param td how and whether to display the time direction
  @param sb the string builder to which to append the text