upstream commit

Allow "ssh -Q protocol-version" to list supported SSH
 protocol versions. Useful for detecting builds without SSH v.1 support; idea
 and ok markus@
diff --git a/ssh.1 b/ssh.1
index 5649212..da64b71 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 1.355 2015/01/30 11:43:14 djm Exp $
-.Dd $Mdocdate: January 30 2015 $
+.\" $OpenBSD: ssh.1,v 1.356 2015/03/03 06:48:58 djm Exp $
+.Dd $Mdocdate: March 3 2015 $
 .Dt SSH 1
 .Os
 .Sh NAME
@@ -58,7 +58,7 @@
 .Op Fl O Ar ctl_cmd
 .Op Fl o Ar option
 .Op Fl p Ar port
-.Op Fl Q Cm cipher | cipher-auth | mac | kex | key
+.Op Fl Q Cm cipher | cipher-auth | mac | kex | key | protocol-version
 .Op Fl R Oo Ar bind_address : Oc Ns Ar port : Ns Ar host : Ns Ar hostport
 .Op Fl S Ar ctl_path
 .Op Fl W Ar host : Ns Ar port
@@ -497,7 +497,7 @@
 Port to connect to on the remote host.
 This can be specified on a
 per-host basis in the configuration file.
-.It Fl Q Cm cipher | cipher-auth | mac | kex | key
+.It Fl Q Cm cipher | cipher-auth | mac | kex | key | protocol-version
 Queries
 .Nm
 for the algorithms supported for the specified version 2.
@@ -511,7 +511,9 @@
 .Ar kex
 (key exchange algorithms),
 .Ar key
-(key types).
+(key types) and
+.Ar protocol-version
+(supported SSH protocol versions).
 .It Fl q
 Quiet mode.
 Causes most warning and diagnostic messages to be suppressed.