* pages. Best is to convert to I8 before sending them, as the I8
* representation is the same no matter what the underlying code page is.
*
+ * tr16 also says that NEL and LF be swapped. We don't do that.
+ *
* EBCDIC characters above 0xFF are the same as Unicode in Perl's
* implementation of all 3 encodings, so for those Step 1 is trivial.
*