clang.kak: rework clang-show-error-info
clang.kak: rework clang-show-error-info

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