require-closing-tags is not supported by antsamy.xsd

[SushantC12]

Please add "require-closing-tags" in antisamy.xsd file. XSD file treats it as child element and doesn't allow custom tag.

[davewichers]

@spassarop - What do you think?

[spassarop]

Its pertinent. require-closing-tags is not present in any example policy file right now and that's probably why we missed it.
Nowadays it is only used when printing closing tags on SAX scanner output to end it like <tag/> or <tag></tag> if it is empty and allowed. I'll add it as optional on the default schema.

[spassarop]

A PR was made with this along with some tests. It is now included in default schema file and it should be positioned at the end if present.

[davewichers]

@SushantC12 - This requested change has been implemented in the main branch and will go out with the 1.7.0 release. If you want to pull this directly, and test it yourself, please do.

[davewichers]

Fix included in v1.6.6 release.