Integrated: Update periodic gc test for changed heuristic log message

[earthling-amzn]

On Thu, 11 Mar 2021 23:53:58 GMT, earthling-amzn <github.com+71722661+earthling-amzn at openjdk.org> wrote:

> This also includes a change to hold down regulator requests when the GC is already running in non-generational modes.

This pull request has now been integrated.

Changeset: b5575d8e
Author:    William Kemper <kemperw at amazon.com>
Committer: Roman Kennke <rkennke at openjdk.org>
URL:       https://git.openjdk.java.net/shenandoah/commit/b5575d8e
Stats:     12 lines in 2 files changed: 4 ins; 0 del; 8 mod

Update periodic gc test for changed heuristic log message

Reviewed-by: rkennke

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PR: https://git.openjdk.java.net/shenandoah/pull/21