lua.kak: Correct -trim-indent hook and fix indent
lua.kak: Correct -trim-indent hook and fix indent

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