Maybe I miss something, but I look at this merged pull request https://github.com/mozilla/DeepSpeech/pull/1974/files
And I updated my version to 0.5.0a5, but when I try use -e
i got this error
usage: deepspeech [-h] --model MODEL --alphabet ALPHABET [--lm [LM]]
[--trie [TRIE]] --audio AUDIO [--version]
deepspeech: error: unrecognized arguments: -e