allow line break at operators

[Roy Smith]

In article <4e47db26$0$30002$c3e8da3$5496439d at news.astraweb.com>,
 Steven D'Aprano <steve+comp.lang.python at pearwood.info> wrote:

> Er, most URLs are case insensitive, at least the most common ones, including
> HTTP and HTTPS. So I don't quite see why you think this was a Whoops.

URLs are most certainly not case insensitive.  Parts of them may be 
(i.e. the scheme and host parts), but not the stuff after the hostname.