git: openjdk/jdk11u-dev: 8273541: Cleaner Thread creates with normal priority instead of MAX_PRIORITY - 2

[Martin Doerr]

Changeset: 89a1f2a4
Author:    Martin Doerr <mdoerr at openjdk.org>
Date:      2021-09-16 12:47:44 +0000
URL:       https://git.openjdk.java.net/jdk11u-dev/commit/89a1f2a4654be32477f096e23184a4c0b8833fff

8273541: Cleaner Thread creates with normal priority instead of MAX_PRIORITY - 2

Backport-of: 4e6de5f9defc031158e027bcbbaf6232b8c03d60

! src/java.base/share/classes/jdk/internal/ref/CleanerImpl.java