hg: jdk/sandbox: 8205610: [TESTLIB] Improve listing of open file descriptors

[chris.hegarty at oracle.com]

Changeset: 35e64b62b284
Author:    rriggs
Date:      2018-07-17 17:14 -0400
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/35e64b62b284

8205610: [TESTLIB] Improve listing of open file descriptors
Reviewed-by: lancea

! test/lib/jdk/test/lib/util/FileUtils.java