net: Fix inaccurate docs for AcceptTCP and AcceptUnix.

R=golang-dev, bradfitz
CC=golang-dev
https://golang.org/cl/13592043

src/pkg/net/tcpsock_plan9.go

@@ -111,7 +111,7 @@ type TCPListener struct {
 }
 
 // AcceptTCP accepts the next incoming call and returns the new
-// connection and the remote address.
+// connection.
 func (l *TCPListener) AcceptTCP() (*TCPConn, error) {
 	if l == nil || l.fd == nil || l.fd.ctl == nil {
 		return nil, syscall.EINVAL

src/pkg/net/tcpsock_posix.go

@@ -225,7 +225,7 @@ type TCPListener struct {
 }
 
 // AcceptTCP accepts the next incoming call and returns the new
-// connection and the remote address.
+// connection.
 func (l *TCPListener) AcceptTCP() (*TCPConn, error) {
 	if l == nil || l.fd == nil {
 		return nil, syscall.EINVAL

src/pkg/net/unixsock_plan9.go

@@ -97,7 +97,7 @@ func ListenUnix(net string, laddr *UnixAddr) (*UnixListener, error) {
 }
 
 // AcceptUnix accepts the next incoming call and returns the new
-// connection and the remote address.
+// connection.
 func (l *UnixListener) AcceptUnix() (*UnixConn, error) {
 	return nil, syscall.EPLAN9
 }

src/pkg/net/unixsock_posix.go

@@ -275,7 +275,7 @@ func ListenUnix(net string, laddr *UnixAddr) (*UnixListener, error) {
 }
 
 // AcceptUnix accepts the next incoming call and returns the new
-// connection and the remote address.
+// connection.
 func (l *UnixListener) AcceptUnix() (*UnixConn, error) {
 	if l == nil || l.fd == nil {
 		return nil, syscall.EINVAL