Hm, the message I get is "Would you like to RESTART, RESTORE a saved game, QUIT or UNDO the last command?" If you'd like to draw even more attention to the UNDO option, maybe you can do this?
Code:
After printing the player's obituary: say "If the ending wasn't satisfactory, you can UNDO your last turn and try something else. This game should never put you in a pickle that you can't get out of by undoing one command."
(You'd have to do some work to get the line spacing to come out right; it might depend on whether you have a score in the game.)