fix: Bug reading password from a buffer when reader returns EOF

[Vizualni]

Description

When providing a password from a io.Reader it returns io.EOF when it's done reading. Function readLineFromBuf then returns the error and discards the password read.
This fixes it and there are tests verifying the behaviour.

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[alexanderbez]

🙌

[Vizualni]

@alexanderbez thanks for the review. I've applied your suggestions :)

[alexanderbez]

@Vizualni can you enable access for pushing/updating on your forks? That way, you don't have to keep manually updating.

[Vizualni]

Hey @alexanderbez. Could you explain to me what exactly I need to do here? I don't see any restriction which tells me that you shouldn't be able to do this. Also, there is test-race(00) that fails. Is this something that's known or was it introduced with this PR?

[alexanderbez]

I don't remember the exact setting you have to change. @marbar3778 do you recall?