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	(fatal_error_signal, Fkill_emacs): Call it, instead of writing it out.
	* xterm.c (x_connection_closed): Call shut_down_emacs instead of
	Fkill_emacs; the latter will try to perform operations on the X
	server and die a horrible death.
	* lisp.h (shut_down_emacs): Add extern declaration for it.