mail-quote-printable-region
mail-quote-printable-region is an interactive autoloaded compiled Lisp function in `mail-utils.el
'.
(mail-quote-printable-region BEG END &optional WRAPPER)
Convert the region to the "quoted printable" Q encoding.
If the optional argument WRAPPER is non-nil,
we add the wrapper characters =?ISO-8859-1?Q?....?=.