DDSSEC13 — Multiple grants in a permissions document

There is only one <permissions> element in a permissions document, but it can contain multiple <grant> elements. Section 9.4.1.3.2.1 states "Each subject name can only appear in a single <permissions> Section"... which should be "single <grant> Section" and "A permissions Section with a subject name that doesn't match" should be "A grant Section with a subject name that doesn't match."