hg: jigsaw/jake/jdk: Move jtreg required version to 4.2 b02

[alan . bateman]

Changeset: a8a191a4b00e
Author:    alanb
Date:      2016-04-29 08:33 +0100
URL:       http://hg.openjdk.java.net/jigsaw/jake/jdk/rev/a8a191a4b00e

Move jtreg required version to 4.2 b02

! test/TEST.ROOT