(defun quoted-printable-decode-region (from to &optional coding-system)
"Decode quoted-printable in the region between FROM and TO, per RFC 2045.
If CODING-SYSTEM is non-nil, decode bytes into characters with that
-coding-system."
+coding-system.
+
+Interactively, you can supply the CODING-SYSTEM argument
+with \\[universal-coding-system-argument]."
(interactive
;; Let the user determine the coding system with "C-x RET c".
(list (region-beginning) (region-end) coding-system-for-read))