data/ml/answer-train-logistic.py: Fix missing pass of exclude_labels
data/ml/answer-train-logistic.py: Fix missing pass of exclude_labels

Martinfx/yodaqa,Martinfx/yodaqa,Martinfx/yodaqa,vineetk1/yodaqa,Martinfx/yodaqa,vineetk1/yodaqa,Martinfx/yodaqa,vineetk1/yodaqa,Martinfx/yodaqa,vineetk1/yodaqa,vineetk1/yodaqa,vineetk1/yodaqa