355658 add debugging to WP S3 Backup

I am having a problem with WP S3 Backups plugin for wordpress.... It runs a WP cron job which backs up to my S3 server. I need to add some debugging code to log to a file as the code executes at midnight. I just need some logging to file code adding to the plugin. The temporary files are created correctly on the local server. So it is not a permission locally. The files are not cleaned up so I am guessing there is an error pushing the files to the S3 server. I just need the logging to a file adding to [login to view URL] file in the backup function. I'll debug it after that. Should be nice simple task.