tf.logging does not exist in tf 2, yet is used from r2 to master

[Zero0one1]

All versions from r2 to master, which states using TF 2, still uses tf.logging in compute_bleu.py. Here is an example of master.

models/official/nlp/transformer/compute_bleu.py

Lines 144 to 148 in f59c465

	if __name__ == "__main__":
	tf.logging.set_verbosity(tf.logging.INFO)
	define_compute_bleu_flags()
	FLAGS = flags.FLAGS
	app.run(main)

[saberkun]

Thanks for reporting. I am fixing this.

[google-ml-butler]

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[saberkun]

6f4e596 merged