Padding character: #27 or 28?

[alexdiment]

KerasDeepSpeech/generator.py

Line 215 in 5536388

t.append(27) # replace with a space char to pad

In generator.py, get_intseq(), the padding is done with character 27. In the char map, it stands for an apostrophe, not the extra 28th padding character. In utils.py, int_to_text_sequence, a character 28 is mentioned as the one for padding. Is that intended?