Make sure we flush the X11 connection once we've sent a bunch of screen updates.


git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@3732 3789f03b-4d11-0410-bbf8-ca57d06f2519
diff --git a/unix/vncviewer/DesktopWindow.cxx b/unix/vncviewer/DesktopWindow.cxx
index 36f96fc..095f14f 100644
--- a/unix/vncviewer/DesktopWindow.cxx
+++ b/unix/vncviewer/DesktopWindow.cxx
@@ -314,6 +314,7 @@
   damage.clear();
 
   im->put(win(), gc, r);
+  XFlush(dpy);
 }