Please review this change to add missing "alt" attributes to the left and right pointing angles used in the sidebar hide/show buttons and prevent `jdkCheckHtml.java` from failing.
TIA. ------------- Commit messages: - add missing alt attribute Changes: https://git.openjdk.org/jdk/pull/24016/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=24016&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8351881 Stats: 4 lines in 1 file changed: 2 ins; 0 del; 2 mod Patch: https://git.openjdk.org/jdk/pull/24016.diff Fetch: git fetch https://git.openjdk.org/jdk.git pull/24016/head:pull/24016 PR: https://git.openjdk.org/jdk/pull/24016
