Update cw-2.py
Update cw-2.py

Replaced `true` and `false` with their correct, capitalized Python alternatives in `Test.expect_error`!

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