ports/math/maxima/files/patch-interfaces-emacs-imaxima-imaxima.texi

--- interfaces/emacs/imaxima/imaxima.texi.orig	2019-02-21 02:30:14 UTC
+++ interfaces/emacs/imaxima/imaxima.texi
@@ -1,5 +1,6 @@
 \input texinfo                  @c -*-texinfo-*-
 @c %**start of header
+@documentencoding ISO-8859-1
 @setfilename imaxima.info
 @settitle Imaxima Manual
 @paragraphindent 0