Fix wake(8) synopsis to make it clear that at least one lladdr is required

as an argument.

Submitted by:	Marc Balmer <marc@msys.ch>
MFC after:	3 days

usr.sbin/wake/wake.8

@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd June 27, 2009
+.Dd December 21, 2009
 .Dt WAKE 8
 .Os
 .Sh NAME
@@ -24,6 +24,7 @@
 .Sh SYNOPSIS
 .Nm
 .Ar interface
+.Ar lladdr
 .Op Ar lladdr ...
 .Sh DESCRIPTION
 The

usr.sbin/wake/wake.c

@@ -62,7 +62,7 @@ static void
 usage(void)
 {
 
-	(void)fprintf(stderr, "usage: wake interface lladdr...\n");
+	(void)fprintf(stderr, "usage: wake interface lladdr [lladdr ...]\n");
 	exit(1);
 }