Merge branch '429.monitoring-backup-stats' into 'develop'

Backup: Add --stats to borgbackup create options

See merge request !337

morph/lib/borgbackup.nix

@@ -56,6 +56,9 @@ in {
           BORG_RSH = "ssh -i /run/keys/borgbackup/ssh-key -o StrictHostKeyChecking=accept-new";
         };
 
+	# Output statistics after uploading a backup set
+	extraCreateArgs = "--stats";
+
         # Ciphertext doesn't compress well
         compression = "none";