mention TLS HTTPS here also; ok bcook

src/usr.sbin/ntpd/ntpd.8

@@ -1,4 +1,4 @@
-.\" $OpenBSD: ntpd.8,v 1.37 2014/02/12 15:45:52 schwarze Exp $
+.\" $OpenBSD: ntpd.8,v 1.38 2015/03/14 04:11:02 deraadt Exp $
 .\"
 .\" Copyright (c) 2003, 2004, 2006 Henning Brauer <henning@openbsd.org>
 .\"
@@ -14,7 +14,7 @@
 .\" AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT
 .\" OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: February 12 2014 $
+.Dd $Mdocdate: March 14 2015 $
 .Dt NTPD 8
 .Os
 .Sh NAME
@@ -38,6 +38,10 @@ It implements the Simple Network Time Protocol version 4,
 as described in RFC 5905,
 and the Network Time Protocol version 3,
 as described in RFC 1305.
+Time can also be fetched from TLS HTTPS servers to reduce the
+impact of unauthenticated NTP
+.Sq Man-In-The-Middle
+attacks.
 .Pp
 The options are as follows:
 .Bl -tag -width "-f fileXXX"