hg: code-tools/jtreg: 2 new changesets

[jonathan.gibbons at oracle.com]

Changeset: f66d83501652
Author:    jjg
Date:      2019-02-04 13:27 -0800
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/f66d83501652

Tweak JDK version detection

! make/Defs.gmk

Changeset: edad52f77592
Author:    jjg
Date:      2019-02-04 13:29 -0800
URL:       http://hg.openjdk.java.net/code-tools/jtreg/rev/edad52f77592

Merge