git: openjdk/jdk21u-dev: master: 8331331: :tier1 target explanation in doc/testing.md is incorrect

[Aleksey Shipilev]

Changeset: 3770c28c
Author:    SendaoYan <syan at openjdk.org>
Committer: Aleksey Shipilev <shade at openjdk.org>
Date:      2024-05-06 08:13:04 +0000
URL:       https://git.openjdk.org/jdk21u-dev/commit/3770c28c05f279ed1a3854c6f70e7e1bbee6ff0e

8331331: :tier1 target explanation in doc/testing.md is incorrect

Backport-of: 04271dfe7a262379944e2a2cf83a98a3a1b78a74

! doc/testing.html
! doc/testing.md