[feature] SaveOptions.inspect should show the options set (similar to ParseOptions)

[flavorjones]

What problem are you trying to solve?

SaveOptions would be more usable if its inspect method showed the options that were set, like ParseOptions does.

Please show your code!

Nokogiri::XML::ParseOptions.new(Nokogiri::XML::ParseOptions::DEFAULT_HTML)
# => #<Nokogiri::XML::ParseOptions:0x35c66ad @options=4196449 default_xml, default_html, recover, noerror, big_lines, default_schema, nonet, nowarning>             

# but

Nokogiri::XML::Node::SaveOptions.new(Nokogiri::XML::Node::SaveOptions::DEFAULT_XHTML).inspect
# => "#<Nokogiri::XML::Node::SaveOptions:0x77a14911 @options=18>"