hg: jdk/submit: 8193660: Check SOURCE line in "release" file for closedjdk

[alexandre.iline at oracle.com]

Changeset: 4c2e97e4975a
Author:    shurailine
Date:      2018-03-05 05:44 -0800
URL:       http://hg.openjdk.java.net/jdk/submit/rev/4c2e97e4975a

8193660: Check SOURCE line in "release" file for closedjdk
Reviewed-by: alanb
Contributed-by: randy.crihfield at oracle.com

! test/jdk/TEST.groups
+ test/jdk/sanity/releaseFile/CheckSource.java