allow -'s in tag names for html scanner when scanning AR xml documents

git-svn-id: http://svn-commit.rubyonrails.org/rails/trunk@4251 5ecf4fe2-1ee6-0310-87b1-e25e094e27de

actionpack/lib/action_controller/vendor/html-scanner/html/node.rb

@@ -156,7 +156,7 @@ def parse(parent, line, pos, content, strict=true)
           end
           
           closing = ( scanner.scan(/\//) ? :close : nil )
-          return Text.new(parent, line, pos, content) unless name = scanner.scan(/[\w:]+/)
+          return Text.new(parent, line, pos, content) unless name = scanner.scan(/[\w:-]+/)
           name.downcase!
   
           unless closing