git: openjdk/jdk11u-dev: 8219149: ProcessTools.ProcessBuilder should print timing info for subprocesses

[Goetz Lindenmaier]

Changeset: 1bdba34e
Author:    Goetz Lindenmaier <goetz at openjdk.org>
Date:      2022-06-21 11:59:55 +0000
URL:       https://git.openjdk.org/jdk11u-dev/commit/1bdba34ed89577fdcc1e1807bacd97753cc2138d

8219149: ProcessTools.ProcessBuilder should print timing info for subprocesses

Add some timestamped logging messages to OutputBuffer.

Backport-of: 67defd71f28f9f4e6b6fd40fcb47a9a602e1f7a7

! test/lib/jdk/test/lib/process/OutputBuffer.java