Open requested to merge pwithnall/shared-mime-info:namespaceURI into master
The previous wording in the spec didn’t make it clear that it isn’t
required (but at least one of it and
localName is required).
This wording is based on the error checking present in
update-mime-database.c, rather than some innate knowledge of how MIME
information should work.
Signed-off-by: Philip Withnall email@example.com