RFR: 8347831: Re-examine version check when cross linking [v8]

[Severin Gehwolf]

On Fri, 21 Nov 2025 15:18:48 GMT, Alan Bateman <alanb at openjdk.org> wrote:

> It might be useful to see what breaks if a JDK were built with a newline in the vendor name, I assume other things will break.

Writhing the manifest entries for `jrt-fs.jar` break (header validation fails). Since the vendor populates to that jar file.

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PR Review Comment: https://git.openjdk.org/jdk/pull/28155#discussion_r2550173160