Lists one or more authors for a source file.
Should typically just be a name
# author: Susan Examplary
Or a comma-separated list of authors.
# author: main man, contributor1, contributor2
URLs or email addresses are best listed behind author names instead:
# author: Susan (http://example.org/), Miriam <firstname.lastname@example.org>
author-email: fields does not really
help anywhere. Typically authorship is just shown once during plugin
installation. And having a mini parser/renderer there is just less effort
than maintaining two PMD fields.
(This is also advised because of Wordpress´ abhorrent "Author URI:" field → asking for an "URI:" but crapping out on urn:, data:, mailto: values.)