Please review some updates to the parts of the build system related to building the documentation.
------------- Commit messages: - JDK-8295914: Add a header to generated HTML files in specs Changes: https://git.openjdk.org/jdk/pull/10891/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=10891&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8295914 Stats: 144 lines in 3 files changed: 139 ins; 1 del; 4 mod Patch: https://git.openjdk.org/jdk/pull/10891.diff Fetch: git fetch https://git.openjdk.org/jdk pull/10891/head:pull/10891 PR: https://git.openjdk.org/jdk/pull/10891