[rdiff-backup-users] Space in the directory name

[Cybertinus]

Hello everybody,

I've tried everything and nothing seams to work. How can I backup an
directory with a space in it's name? I've tried /path/to/dir\ with\
space/ or "/path/to/dir with space", but rdiff-backup crashes on this.
It can't find the correct directory. It either thinks that every
directory is a separate directory or it thinks that the " are part of
the directory name. Both cases make the backup fail. How to fix?

Regards,
Cybertinus