documentation/python: show function values as ellipses as well, for now.

documentation/python: show function values as ellipses as well, for now.

Putting `<function whatever>` into a Python stub file isn't a good idea
at all, as it's a syntax error. It isn't really useful for the HTML
output either because there's just the name, not the fully qualified
function, and it's not a link either.

I may eventually go back to this and make those actual names and links
if the functions are known, but right now there are other, more important
things left to do.