Fix last commit.

 src/xdisp.c (note_mouse_highlight): Adapt calculation of last argument to
 mouse_face_from_string_pos to the previous change.

Fixes: debbugs:15437

src/ChangeLog

@@ -3,6 +3,8 @@
 	* xdisp.c (mouse_face_from_string_pos): Fix off-by-one error in
 	computing the end column of mouse-highlight that comes from
 	display or overlay strings.  (Bug#15437)
+	(note_mouse_highlight): Adapt calculation of last argument to
+	mouse_face_from_string_pos to the above change.
 
 	* conf_post.h (__has_builtin): Define to zero, if undefined, on
 	all platforms, not just for clang.

src/xdisp.c

@@ -28267,7 +28267,7 @@ note_mouse_highlight (struct frame *f, int x, int y)
 	      if (NILP (s))
 		s = make_number (0);
 	      if (NILP (e))
-		e = make_number (SCHARS (object) - 1);
+		e = make_number (SCHARS (object));
 	      mouse_face_from_string_pos (w, hlinfo, object,
 					  XINT (s), XINT (e));
 	      hlinfo->mouse_face_past_end = 0;