So you get this:
oil$ find . -name *.jpg
find: missing argument to `-name'
oil$ find . -name '*.jpg'
But I just fixed that and it will be out with the next Oil release.
If anyone wants to add more strictness options to Oil to avoid these types of mistakes, let us know! (e.g. on https://github.com/oilshell/oil, or there's more contact info on the home page).