[Linux] Fix the data format for the selection
[Linux] Fix the data format for the selection

The data is in UTF8 encoding. This fixes the missing trailing character
when copy & paste

draegtun/ren-c,rgchris/ren-c,kealist/ren-c,kealist/ren-c,rgchris/ren-c,draegtun/ren-c,codebybrett/ren-c,codebybrett/ren-c,giuliolunati/ren-c,codebybrett/ren-c,mbk/ren-c,kealist/ren-c,kealist/ren-c,draegtun/ren-c,codebybrett/ren-c,giuliolunati/ren-c,hostilefork/rebol,draegtun/ren-c,giuliolunati/ren-c,hostilefork/rebol,rgchris/ren-c,giuliolunati/ren-c,hostilefork/rebol,mbk/ren-c,codebybrett/ren-c,mbk/ren-c,kealist/ren-c,rgchris/ren-c,hostilefork/rebol,mbk/ren-c,rgchris/ren-c,kealist/ren-c,hostilefork/rebol,giuliolunati/ren-c,draegtun/ren-c,codebybrett/ren-c,hostilefork/rebol,draegtun/ren-c