Comment 12 for bug 315865

Please! Fix this before 4.3 release.
You already show pretty dialog with all current active sessions after pressing "Switch user"
What it worth to you to show warning dialog just after i press "Shutdown" or "Restart" when you already know about all opened sessions. You can simply show almost the same dialog as in "Switch user" case with only change "Shutdown" button instead of "Start new session"