upstream: Minor man page fixes (capitalization, commas) identified by

the manpage-l10n project via bz#3223.  feedback deraadt@, ok jmc@

OpenBSD-Commit-ID: ab83af0daf18369244a72daaec6c4a58a9eb7e2c

ssh-keygen.1

@@ -1,4 +1,4 @@
-.\"	$OpenBSD: ssh-keygen.1,v 1.209 2020/09/09 03:08:01 djm Exp $
+.\"	$OpenBSD: ssh-keygen.1,v 1.210 2020/10/26 00:39:04 dtucker Exp $
 .\"
 .\" Author: Tatu Ylonen <ylo@cs.hut.fi>
 .\" Copyright (c) 1995 Tatu Ylonen <ylo@cs.hut.fi>, Espoo, Finland
@@ -35,7 +35,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: September 9 2020 $
+.Dd $Mdocdate: October 26 2020 $
 .Dt SSH-KEYGEN 1
 .Os
 .Sh NAME
@@ -634,7 +634,7 @@ For example:
 .Dq 20100101123000:20110101123000
 (valid from 12:30 PM, January 1st, 2010 to 12:30 PM, January 1st, 2011),
 .Dq -1d:20110101
-(valid from yesterday to midnight, January 1st, 2011).
+(valid from yesterday to midnight, January 1st, 2011),
 .Dq -1m:forever
 (valid from one minute ago and never expiring).
 .It Fl v
@@ -1003,7 +1003,7 @@ The
 option allows specification of certificate start and end times.
 A certificate that is presented at a time outside this range will not be
 considered valid.
-By default, certificates are valid from
+By default, certificates are valid from the
 .Ux
 Epoch to the distant future.
 .Pp
@@ -1107,7 +1107,7 @@ Empty lines and lines starting with a
 .Ql #
 are ignored as comments.
 .Pp
-The principals field is a pattern-list (See PATTERNS in
+The principals field is a pattern-list (see PATTERNS in
 .Xr ssh_config 5 )
 consisting of one or more comma-separated USER@DOMAIN identity patterns
 that are accepted for signing.