RFR: 8285506: Unify os::vsnprintf implementations

[Johan Sjölen]

On Tue, 28 May 2024 09:57:22 GMT, David Holmes <dholmes at openjdk.org> wrote:

> We now only need a single shared definition of os::vsnprintf.
> 
> Testing - tiers 1-3 (sanity)
> 
> Thanks.

Thank you. LGTM.

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Marked as reviewed by jsjolen (Reviewer).

PR Review: https://git.openjdk.org/jdk/pull/19422#pullrequestreview-2083519153