<p><!-- CL 396877 -->
When a net package function or method returns an "I/O timeout"
error, the error will now satisfy <code>errors.Is(err,
- context.Canceled)</code>. When a net package function returns
- an "operation was canceled" error, the error will now satisfy
- <code>errors.Is(err, context.DeadlineExceeded)</code>.
+ context.DeadlineExceeded)</code>. When a net package function
+ returns an "operation was canceled" error, the error will now
+ satisfy <code>errors.Is(err, context.Canceled)</code>.
These changes are intended to make it easier for code to test
for cases in which a context cancelation or timeout causes a net
package function or method to return an error, while preserving