RFR: 8264425: Update building.md on non-English locales on Windows [v3]

Mon Nov 20 23:31:08 UTC 2023

On Mon, 20 Nov 2023 15:08:22 GMT, Magnus Ihse Bursie <ihse at openjdk.org> wrote:

>> Update the build documentation to reflect the fact that non-English locales are only supported on a "best effort" principle, and add instructions how to install the necessary language pack to Visual Studio.
>
> Magnus Ihse Bursie has updated the pull request incrementally with one additional commit since the last revision:
> 
>   * Add requirement on system locale as well.
>   * Reorganize text to be more logical
>   * Emphasize that the US locale should be used

Marked as reviewed by erikj (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/16694#pullrequestreview-1740866158