git-gui: Long lines in commit message gets hidden, no scrollbar appears

[Birger Skogeng Pedersen]

Hi,

I just noticed that long lines in the commit message widget does in
fact not show a horizontal scrollbar.
So if a line in the commit message is more than 75 characters, it gets
a bit confusing.
Should it not have a scrollbar?
Example shown here: https://i.imgur.com/I3d6nBJ.png