Comment 9 for bug 1156566

Robert, yes, the ellipsis is because it opens a dialog. The restart dialog should show the equivalent of the shutdown dialog: "Are you sure you want to close all programs and restart the computer?"

Remember that the menu item is not the only UI element that triggers this dialog: it's also invoked by Software Updater after updates that require a restart, and by the "Additional Drivers" tab of Software & Updates settings when you make driver changes. So just removing the menu item wouldn't remove the need for a Restart dialog to exist.