1. Remove space before /> to keep consistency.
  2. Capitalize filters for Log4j2.
  3. Uppercase log level to keep consistency.

Comment From: quaff

No sure which style is preferred by Spring Boot, but mixing different styles is not good.

Comment From: wilkinsona

Thanks, @quaff.

Remove space before /> to keep consistency.

The --format support in xmllint removes them so that feels like as good a reason as any to go in that direction.

Unwrap for Log4j2

I'm not sure we should do this. It's certainly more than a formatting change as it removes the use of the filters plugin. I think I'd prefer that this part of the changes is reverted.

Comment From: quaff

I think I'd prefer that this part of the changes is reverted.

Done, and capitalize filters.