Use self-closing br in linebreaksbr templatetag.

[David Ogutu]

The HTML 5 spec says that it's OK to use self-closing tags for void elements
​https://dev.w3.org/html5/html-author/#void

I'd like to change linebreaksbr to use the self-closing version of br i.e. <br/> so it can be used safely in more environments.

As an example, I wanted to use it in a template generating RML (see ​https://www.reportlab.com/software/rml-reference/).

This will not break any existing users but will expand the templatetag's reach

[Mariusz Felisiak]

Thanks for this request. I know that this change looks trivial but probably it is not the only one that is required in your use case. Please take a look at the ​django-developers discussion (self-closing tags are a part of it) and ticket #29681. IMO ​custom widget templates should solve your issue.

[David Ogutu]

Thanks. I've looked at the discussion and I agree that it makes sense to keep this closed. For future visitors, I think a better way might be to create an intermediary template renderer.