RFR: 8277316: ciReplay: dump_replay_data is not thread-safe

[Dean Long]

On Wed, 17 Nov 2021 09:05:14 GMT, Dean Long <dlong at openjdk.org> wrote:

> Using a static buffer for the file name causes corrupted replay files.  Fixed.

I also changed the formatting for <pid> in the file name to use %d instead of %p, so it is consistently output in decimal instead of hex.

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PR: https://git.openjdk.java.net/jdk/pull/6426