Change to https for tigervnc URL
Our main web site now supports https, so update all references.
diff --git a/vncviewer/vncviewer.cxx b/vncviewer/vncviewer.cxx
index 8d79510..ac4afca 100644
--- a/vncviewer/vncviewer.cxx
+++ b/vncviewer/vncviewer.cxx
@@ -100,7 +100,7 @@
_("TigerVNC Viewer %d-bit v%s\n"
"Built on: %s\n"
"Copyright (C) 1999-%d TigerVNC Team and many others (see README.rst)\n"
- "See http://www.tigervnc.org for information on TigerVNC."),
+ "See https://www.tigervnc.org for information on TigerVNC."),
(int)sizeof(size_t)*8, PACKAGE_VERSION,
BUILD_TIMESTAMP, 2018);
diff --git a/vncviewer/vncviewer.man b/vncviewer/vncviewer.man
index 421290f..8762dfb 100644
--- a/vncviewer/vncviewer.man
+++ b/vncviewer/vncviewer.man
@@ -320,7 +320,7 @@
.BR vncconfig (1),
.BR vncserver (1)
.br
-http://www.tigervnc.org
+https://www.tigervnc.org
.SH AUTHOR
Tristan Richardson, RealVNC Ltd. and others.