[BRLTTY] Linux screen driver.

[高生旺]

> Okay. I think the cursor positioning problems with direct Unicode have been
> fixed. Could you please update to the latest code - without the patch - and
> verify?

Perfect! Thank you very much!

> also, using the latest code and without the patch, please retest the charset=
> parameter.

Unfortunately still doesn't work.
But I can read utf-8 file without "unicode=no" statement.