hg: jdk/sandbox: Merge

[magnus.ihse.bursie at oracle.com]

Changeset: 14d36454eb9a
Author:    ihse
Date:      2020-06-11 13:18 +0200
URL:       https://hg.openjdk.java.net/jdk/sandbox/rev/14d36454eb9a

Merge

! make/autoconf/boot-jdk.m4
! make/autoconf/spec.gmk.in