Can't make patch for getting TUTORIAL.se in mule XEmacs.

Hi, In "european.el" the line ("Swedish" "sv"))) Should be changed into: ("Swedish" "sv" "TUTORIAL.se" "Hej!"))) So that the nice swedish translation is accessible under Mule. ;-) I tried to make a patch for this but then I got lots of other changes besides my small change. All these changes were related to single characters that was changed. I guess somehow the coding systems are playing some tricks here with me. Can someone please explain what has happened and what I should do to produce a good patch? I did really nothing else than entered european.el, changed the line and saved the buffer. (Yes I used a Mule enabled XEmacs.) (And I couldn't include the patch because gnus complained it had 8 different charsets. [Sort of highlights my problem.] But I hope you can figure out how the patch looked anyway or at least understand my problem.) Yours -- %% Mats