Problems processing restore pending files

[rafaelma]

When a restore pending file is generated because pgbackman_restore cannot update the pgbackman metadatabase, the format of the file generated is not right.

At the same time pgbackman_maintenance has problems reading this file and updating the pgbackman database.

The problems are located here
pgbackman_restore: def register_restore_catalog()
pgbackman_maintenance:process_pending_restore_catalog_log_file()