sympl-backup triggers `tar` warnings
https://forum.sympl.host/t/backups-tar-warning-about-non-optional-arguments/44
Problem Description
When doing backups, the following message is shown, with the backup succeeding:
Creating archive using 'DRIVER_TAR_GZ'...
tar: The following options were used after any non-optional arguments in archive create or update mode. These options are positional and affect only arguments that follow them. Please, rearrange them properly.
tar: --no-recursion has no effect
tar: Exiting with failure status due to previous errors
Checking TOC of archive file (< real file, > archive entry)...This is due to changes to tar in Buster.