Broken interactive rebase text after some UTF-8 characters

[Michal Nowak]

Hello,

on OpenIndiana 2018.10 (illumos kernel) line of the interactive rebase 
text after a particular name (Gergő Mihály Doma) is broken:

pick 1ea94c756c 10202 loader: use screen-#rows to find bottom left 
co-ordinates Reviewed by: Toomas Soome <tso...@me.com> Reviewed by: 
Gergő Mihály Doma <doma...@gmail.com> Approved by: Robert Mustacchi 
<r...@joyent.com>
p
pick cadd68ea00 10078 smatch fixes for UCB Reviewed by: Andy Fiddaman 
<omn...@citrus-it.net> Reviewed by: Toomas Soome <tso...@me.com> 
Reviewed by: Peter Tribble <peter.trib...@gmail.com> Approved by: Robert 
Mustacchi <r...@joyent.com>


Source: https://github.com/illumos/illumos-gate.git

See the second item which only has "p".

This is with LC_ALL=en_US.UTF-8 (same with cs_CZ.UTF-8), with LC_ALL=C 
the text is fine.

I checked various editors (vim, nano, cat), they are all the same.

`git log` (PAGER is set to `/usr/bin/less -ins`) shows the particular 
commit correctly.

I tested following git version: 2.16.5, 2.19.2, 2.20.1, git.next branch.

Here's the configure output: 
https://paste.ec/paste/oDdydNxZ#r3avan8BL+8lldFMo928cw3eXSServTsSkGPW4jRBOd

Michal