hg: jigsaw/jake/hotspot: Configure jtreg to use new form of -Xpatch

[alan . bateman]

Changeset: 3a948749df6a
Author:    alanb
Date:      2016-04-11 18:56 +0100
URL:       http://hg.openjdk.java.net/jigsaw/jake/hotspot/rev/3a948749df6a

Configure jtreg to use new form of -Xpatch

! test/TEST.ROOT