(shell-command-on-region): If there is output an an error,
add "...Shell command failed" to the output.
+2001-12-13 David Ponce <david@dponce.com>
+
+ * ruler-mode.el: Version 1.4.
+ (ruler-mode-left-fringe-cols): Variable removed.
+ (ruler-mode-left-fringe-cols): Function replaced by more efficient
+ implementation `ruler-mode-extra-left-cols'.
+ (ruler-mode-ruler): Use above new function. Take into account
+ that the fringe areas can now be resized.
+
2001-12-12 Richard M. Stallman <rms@gnu.org>
* international/characters.el (Unicode): Comment out