fix: Incorrectly modified `ScreenLogger`

[phi-friday]

Before I applied #497 it worked like this https://github.com/bayesian-optimization/BayesianOptimization/blob/bc9af23981cb22b98344424b5c2544b741b74938/bayes_opt/logger.py#L167

but after, https://github.com/bayesian-optimization/BayesianOptimization/blob/16c00f3b7867d7cf43047b2c80d4b6e54156b5e8/bayes_opt/logger.py#L164

I expect it to work the same as before.