upstream: Emphasise that -w implicitly sets Tunnel=point-to-point

and that users should specify an explicit Tunnel directive if they don't want
this. bz#2365.

OpenBSD-Commit-ID: 1a8d9c67ae213ead180481900dbbb3e04864560d
diff --git a/ssh.1 b/ssh.1
index 82ec4a5..4003446 100644
--- a/ssh.1
+++ b/ssh.1
@@ -33,8 +33,8 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.\" $OpenBSD: ssh.1,v 1.392 2018/04/06 03:34:27 djm Exp $
-.Dd $Mdocdate: April 6 2018 $
+.\" $OpenBSD: ssh.1,v 1.393 2018/05/11 04:01:11 djm Exp $
+.Dd $Mdocdate: May 11 2018 $
 .Dt SSH 1
 .Os
 .Sh NAME
@@ -741,10 +741,15 @@
 .Cm TunnelDevice
 directives in
 .Xr ssh_config 5 .
+.Pp
 If the
 .Cm Tunnel
-directive is unset, it is set to the default tunnel mode, which is
+directive is unset, it will be set to the default tunnel mode, which is
 .Dq point-to-point .
+If a different
+.Cm Tunnel
+forwarding mode it desired, then it should be specified before
+.Fl w .
 .Pp
 .It Fl X
 Enables X11 forwarding.