CLI invalid connection string results in zero exit code

./bin/cli.sh --connect 'http://operator:UvSgD5xAV@YU99za@test-batch-fail:11222'

The above connection string is invalid as the password `@` character has not been escaped, resulting in a IllegalArgumentException being thrown. However, the cli returns with a zero escape code when it should be non-zero to indicate abnormal termination.