String
rrToString() {
	StringBuffer sb = new StringBuffer();
	sb.append(u16Field);
	sb.append(" ");
	sb.append(nameField);
	return sb.toString();
}
Implements common functionality for the many record types whose format
is an unsigned 16 bit integer followed by a name.

@author Brian Wellington
src/main/java/core/org/xbill/DNS/U16NameBase.java