Comment 8 for bug 1932579

@kmiksi, actually, I think that your proposed workaround enhanced the problem. The error messages from my previous post started to show up after I've run the sed command you've proposed and I think this happened because the file `snappy.mo` is a binary not an ascii text file. I have reverted my changes by running:

```
sudo apt --reinstall install language-pack-pt-base
```

And now I have only the original error message:

```
$ snap --help
2021/09/16 21:43:52.882927 main.go:176: description of prepare-image's "<target-dir>" is lowercase in locale "pt_BR": "o directório de destino"
O comando snap permite instalar, configurar, atualizar e remover snaps.
...

```