Comment 3 for bug 2002290

To be absolutely fair, I have to add this:

One thing, namely the handling of BiDi _control_ characters at the very beginning of a paragraph (logical line), remains as a TODO item both in the spec and in VTE's implementation (both of which are really nontrivial).

I just ran out of motivation and time, so it's probably waiting for someone else to fix it.

In the unlikely case that "apt"'s given message begins with such a character, and VTE chopping it off is the reason for the wrong order, then it's my fault :)