code: public String toRSL(boolean explicitConcat) {
  	StringBuffer buf = new StringBuffer();
  	toRSL(buf, explicitConcat);
  	return buf.toString();
      }
docs: Returns a RSL representation of this variable definition.
  
  @param explicitConcat if true explicit concatination will
  be used in RSL strings.
  @return RSL representation of this variable definition.