rc tupfile: Fix the keywords regex
rc tupfile: Fix the keywords regex

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