RFR: 8278422: Replace use of deprecated single string variant of Runtime.exec method

[Andy Goryachev]

On Tue, 9 May 2023 20:22:05 GMT, Kevin Rushforth <kcr at openjdk.org> wrote:

>> No, we can't use that. More to the point, it is unrelated to this PR (and thus out of scope).
>
> But I do think it would be a good idea to use `PlatformUtil` here, so maybe file a cleanup issue to look for places where we explicitly parse `os.name`, and consider calling the appropriate `PlatformUtil` method instead?

+1 for PlatformUtil.

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PR Review Comment: https://git.openjdk.org/jfx/pull/1130#discussion_r1189139175