[Doc] Added "vncviewer host::port" syntax to vncviewer man page


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3046 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/unix/vncviewer/vncviewer.man b/unix/vncviewer/vncviewer.man
index 2ff93e2..2a764da 100644
--- a/unix/vncviewer/vncviewer.man
+++ b/unix/vncviewer/vncviewer.man
@@ -8,6 +8,10 @@
 .br
 .B vncviewer
 .RI [ options ] 
+.RI [ host ][:: port ]
+.br
+.B vncviewer
+.RI [ options ] 
 .B \-listen
 .RI [ port ]
 .SH DESCRIPTION