eb4e472 backup,restore: Don't overwrite /etc/{passwd,group}

Authored and Committed by pviktori 9 years ago
    backup,restore: Don't overwrite /etc/{passwd,group}
    
    The /etc/passwd and /etc/group files are not saved and restored.
    The DS user is always created on restore, and the PKI user is created
    if a CA is being restored.
    
    https://fedorahosted.org/freeipa/ticket/3866
    
    Reviewed-By: Tomas Babej <tbabej@redhat.com>