hg: code-tools/jtharness: 7902593: Define source/target javac versions in build.properties explicitly

[dmitry.bessonov at oracle.com]

Changeset: f99c0e033447
Author:    dbessono
Date:      2020-01-24 20:43 +0000
URL:       https://hg.openjdk.java.net/code-tools/jtharness/rev/f99c0e033447

7902593: Define source/target javac versions in build.properties explicitly

! build/build-i18ncheck.xml
! build/build.properties
! build/build.xml
! build/jtlite/build-jtlite.xml