* guix/scripts/system.scm (seconds->string): New procedure. (previous-grub-entries)[system->grub-entry]: Add 'number' and 'time' parameters. Adjust call accordingly.
* guix/scripts/system.scm (seconds->string): New procedure. (previous-grub-entries)[system->grub-entry]: Add 'number' and 'time' parameters. Adjust call accordingly.