RFR: 8370719: [Linux] Use /etc/os-release values for font configuration file names

[Prasanta Sadhukhan]

On Thu, 30 Oct 2025 19:07:04 GMT, Phil Race <prr at openjdk.org> wrote:

> The JBS issue has a long discussion and explanation but here's a short version.
> Instead of having baked in names of distros in the code that figures out names for font configuration files for Linux
> use the standard ID and VERSION_ID fields in /etc/os-release which is now standard.
> even systemd doesn't work if it does not exist https://0pointer.de/blog/projects/os-release
> And if it doesn't we just use "Linux" as the name.

Marked as reviewed by psadhukhan (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/28073#pullrequestreview-3409936212