net: fix comments

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/5557059

src/pkg/net/net.go

@@ -24,12 +24,12 @@ type Addr interface {
 type Conn interface {
 	// Read reads data from the connection.
 	// Read can be made to time out and return a net.Error with Timeout() == true
-	// after a fixed time limit; see SetTimeout and SetReadTimeout.
+	// after a fixed time limit; see SetDeadline and SetReadDeadline.
 	Read(b []byte) (n int, err error)
 
 	// Write writes data to the connection.
 	// Write can be made to time out and return a net.Error with Timeout() == true
-	// after a fixed time limit; see SetTimeout and SetWriteTimeout.
+	// after a fixed time limit; see SetDeadline and SetWriteDeadline.
 	Write(b []byte) (n int, err error)
 
 	// Close closes the connection.