upgrade clang to see if it somehow fixes travis
upgrade clang to see if it somehow fixes travis

OverZealous/codewars-runner-cli,Codewars/codewars-runner-cli,Codewars/codewars-runner,Codewars/codewars-runner-cli,Codewars/codewars-runner-cli,DonaldKellett/codewars-runner-cli,Codewars/codewars-runner-cli,OverZealous/codewars-runner-cli,DonaldKellett/codewars-runner-cli,lteacher/codewars-runner-cli,OverZealous/codewars-runner-cli,Codewars/codewars-runner,DonaldKellett/codewars-runner-cli,OverZealous/codewars-runner-cli,OverZealous/codewars-runner-cli,OverZealous/codewars-runner-cli,lteacher/codewars-runner-cli,Codewars/codewars-runner,lteacher/codewars-runner-cli,lteacher/codewars-runner-cli,DonaldKellett/codewars-runner-cli,OverZealous/codewars-runner-cli,Codewars/codewars-runner,lteacher/codewars-runner-cli,DonaldKellett/codewars-runner-cli,Codewars/codewars-runner,OverZealous/codewars-runner-cli,OverZealous/codewars-runner-cli,Codewars/codewars-runner-cli,Codewars/codewars-runner-cli,Codewars/codewars-runner-cli,Codewars/codewars-runner-cli,DonaldKellett/codewars-runner-cli,OverZealous/codewars-runner-cli,DonaldKellett/codewars-runner-cli,DonaldKellett/codewars-runner-cli,lteacher/codewars-runner-cli,Codewars/codewars-runner-cli,Codewars/codewars-runner-cli,lteacher/codewars-runner-cli,OverZealous/codewars-runner-cli,OverZealous/codewars-runner-cli,lteacher/codewars-runner-cli,Codewars/codewars-runner-cli,lteacher/codewars-runner-cli,DonaldKellett/codewars-runner-cli,OverZealous/codewars-runner-cli,DonaldKellett/codewars-runner-cli,lteacher/codewars-runner-cli,OverZealous/codewars-runner-cli,lteacher/codewars-runner-cli,DonaldKellett/codewars-runner-cli,Codewars/codewars-runner-cli,Codewars/codewars-runner-cli,Codewars/codewars-runner-cli