A wonderful little utility. Certainly anyone who was using linux on a desktop
with x11 in the 90s has seen xlogo. In the course of posting it to his blog,
the author noticed that neither q or esc would close xlogo, which would be kind
of the traditional, expected keybind. Turns out in the source code it required
both esc AND q to be pressed because of a programming error. Sure enough in my
version, from the Fedora (30) repos which is 7.7 neither esc or q works, but
pressing them together or one after the other exits xlogo!
And even funnier, 10 days after the original post, the maintainers of xlogo
fixed it upstream!