add_pub_date.RdAdds the publication date element to a dataset list according to EML standards.
add_pub_date(parent_element, date = NULL)A list representing the EML project or dataset.
The publication date. If left null, it will be assigned the current
date. This can be overridden by putting in a specific date: see create_pub_date
The dataset list or project with publication date information appended.