Coming soon: jtreg 8.1

[Christian Stein]

JDK folk,

This is a general heads-up that jtreg 8.1 is ready for use and
that we should soon update JDK to use it. The most significant
changes in jtreg 8.1 are improvements in the logging format
and order with respect to agent-, action-, and test-related
execution points.

Find a listing of all noteworthy changes at [1].

Thanks to everyone who has helped thus far!

[1] https://git.openjdk.org/jtreg/blob/master/CHANGELOG.md#8.1