Fix more problems found by GCC 4.6.0's static checks.
+ * xdisp.c (vmessage): Mark as a printf-like function.
+
* term.c (vfatal, maybe_fatal): Mark as printf-like functions.
* sound.c (sound_warning): Don't crash if arg contains a printf format.
static void handle_stop (struct it *);
static void handle_stop_backwards (struct it *, EMACS_INT);
static int single_display_spec_intangible_p (Lisp_Object);
+static void vmessage (const char *, va_list) ATTRIBUTE_FORMAT_PRINTF (1, 0);
static void ensure_echo_area_buffers (void);
static Lisp_Object unwind_with_echo_area_buffer (Lisp_Object);
static Lisp_Object with_echo_area_buffer_unwind_data (struct window *);