Visual artifacts, line drawing characters not showing

[kobaz]

v0.12.2

Describe the bug
Visual artifacts, line drawing characters not showing

Distro: Debian Buster. Terminal: mrxvt
export TERM=xterm
export LANG=C
lnav /var/log/messages

I drew some red boxes to highlight the areas of concern. There's no line drawing characters on the right, and there's a random à on the left hand side.

To Reproduce
Build, make install, run

[kobaz]

My terminal: mrtxvt does not support UTF8

I found a possible thing here. I also had NCURSES_NO_UTF8_ACS set.

Looks like this causes an issue when a term is not capable of UTF8 (which seems a little backwards?)

If NCURSES_NO_UTF8_ACS=1, lnav looks to be trying to draw utf8
If NCURSES_NO_UTF8_ACS is unset, then lnav draws high ascii line drawing.