search for: sync_and_wait

Is it possible to call rsync and tell it to use a filter file if it exists, but otherwise continue without errors? If I pass "--filter=. .rsync-filter", it will fail if .rsync-filter doesn't exist. I know you can pass "--filter=: /.rsync-filter" to search for filter files in each directory. That won't fail if there aren't any such files. But I'm only