[Plugin: WordPress Backup to Dropbox] Division by zero

When the backup is triggered an there are no new files to backup, the error “Division by zero” occurs. Reason is the following code in the file ../wordpress-backup-to-dropbox/Classes/class-wp-backup.php

$percent_done = round(($processed_file_count / $total_files) * 100, 0);

Thank you for fixing.

http://ww.wp.xz.cn/extend/plugins/wordpress-backup-to-dropbox/