Comment 3 for bug 3498

I can see this on my system (LANG is en_IE.UTF-8). The characters are the ascii representation of the UTF-8 codepoints used to draw the box (│, └, etc.).
When the text is copied, and pasted into vi on another VT, the line drawing characters can be seen.
When a getty is opened on tty7, vt-is-UTF8 reports "Single-byte char mode."
Changing NUM from 6 to 8 in unicode_start and unicode_stop seems to fix the issue. Therefore, reassigning to console-tools.