Added test for Listing10.20
MODIFY
src/Chapter10/Listing10.20.DefiningAFinalizer.cs
src/Chapter10/Listing10.20.DefiningAFinalizer.cs
{
using System.IO;
- class TemporaryFileStream
+ public class TemporaryFileStream
{
public TemporaryFileStream(string fileName)
{

Added test for Listing10.20