Improve POSIX sed compatibility in lint.kak
Improve POSIX sed compatibility in lint.kak

Fixes #1072

ekie/kakoune,danr/kakoune,danr/kakoune,Somasis/kakoune,occivink/kakoune,lenormf/kakoune,lenormf/kakoune,occivink/kakoune,occivink/kakoune,jjthrash/kakoune,alexherbo2/kakoune,casimir/kakoune,Somasis/kakoune,casimir/kakoune,lenormf/kakoune,ekie/kakoune,jkonecny12/kakoune,alexherbo2/kakoune,Somasis/kakoune,danr/kakoune,jjthrash/kakoune,alexherbo2/kakoune,mawww/kakoune,danr/kakoune,ekie/kakoune,mawww/kakoune,ekie/kakoune,casimir/kakoune,mawww/kakoune,alexherbo2/kakoune,jkonecny12/kakoune,jkonecny12/kakoune,jkonecny12/kakoune,casimir/kakoune,jjthrash/kakoune,lenormf/kakoune,mawww/kakoune,occivink/kakoune,jjthrash/kakoune,Somasis/kakoune