- New upstream release of 0.5.5.
    - Check the filename is valid before exploding. Fixes #537381
    - Only check certain transaction elements, not all of them. Fixes #541645
    - After a successful cnf installation, re-exec new binary not
        command-not-found. Fixes #533554
    - Run the newly installed file sync so we can return a proper exit code.
        Fixes #540482
    - Only email using cron when a useful action was done. Fixes #540949
    - Do not split more than one locale hint to fix setting LC_ variables.
        Fixes #543716