RFR: JDK-8304171: Fix layout of JCov instrumented bundle on Mac OS

[Erik Joelsson]

On Tue, 14 Mar 2023 19:34:32 GMT, Alexandre Iline <shurailine at openjdk.org> wrote:

> Now on all platforms the JCov bundle would look the same.

Marked as reviewed by erikj (Reviewer).

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PR: https://git.openjdk.org/jdk/pull/13027