[jdk24] RFR: 8346667: Doccheck: warning about missing </span> before <h2>

[Nizar Benalla]

Hi all,

This pull request contains a backport of commit [054c644e](https://github.com/openjdk/jdk/commit/054c644ea6ea38e54abc81e231977106d04bb69e) from the [openjdk/jdk](https://git.openjdk.org/jdk) repository.

The commit being backported was authored by Nizar Benalla on 20 Dec 2024 and was reviewed by Paul Sandoz.

Thanks!

-------------

Commit messages:
 - Backport 054c644ea6ea38e54abc81e231977106d04bb69e

Changes: https://git.openjdk.org/jdk/pull/22844/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=22844&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8346667
  Stats: 6 lines in 1 file changed: 3 ins; 2 del; 1 mod
  Patch: https://git.openjdk.org/jdk/pull/22844.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/22844/head:pull/22844

PR: https://git.openjdk.org/jdk/pull/22844