Two URLs point to "A Kinder, Gentler HTML Validator" point a web site that is, probably, no longer supported. See the links near the end of section 3.2: Elements, Tags, and Attributes. http://www.cs.duke.edu/~dsb/kgv-faq/ Perhaps DSB has left Duke. Fix: Unknown. A search for "gentler html validator" turned up: http://ugweb.cs.ualberta.ca/~gerald/validate/ but that simply suggested using the W3C HTML Validation Service: http://validator.w3.org I can't find "[m]ore information about errors from nsgmls(1)" there. How-To-Repeat: Attempt to follow the link to Duke found on the web page http://www.freebsd.org/tutorials/docproj-primer/sgml-primer-elements.html
State Changed From-To: open->closed Committed, thanks!