Omit / from sponsor domains with no path
Omit / from sponsor domains with no path

Showing a trailing slash on a sponsor's domain when it's not part of a
path looks odd (e.g., example.org/). The `clean_url` is being altered to
only include the path when there's a path other than just root.

pathunstrom/pygotham,djds23/pygotham-1,pathunstrom/pygotham,pathunstrom/pygotham,pathunstrom/pygotham,PyGotham/pygotham,PyGotham/pygotham,djds23/pygotham-1,djds23/pygotham-1,djds23/pygotham-1,PyGotham/pygotham,pathunstrom/pygotham,djds23/pygotham-1,PyGotham/pygotham,PyGotham/pygotham