[Bugfix] When terminating x0vncserver by pressing Ctrl+C in a remote viewer, x0vncserver used to leave the Ctrl modifier "pressed". Now it should be "released" properly.

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@2758 3789f03b-4d11-0410-bbf8-ca57d06f2519

unix/x0vncserver/x0vncserver.cxx

@@ -551,6 +551,8 @@ int main(int argc, char** argv)
     return 1;
   }
 
+  TXWindow::handleXEvents(dpy);
+
   vlog.info("Terminated");
   return 0;
 }