Fix FileOutputTest.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1582795 13f79535-47bb-0310-9956-ffa450edef68
Fix CleanFiles rule to only delete files after a test.

  - Fixes failing test in ConfigurationTest.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1582800 13f79535-47bb-0310-9956-ffa450edef68
Fix RollingAppenderSizeTest.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1582803 13f79535-47bb-0310-9956-ffa450edef68
Make org.apache.logging.log4j.util.PropertiesUtil final.

git-svn-id: https://svn.apache.org/repos/asf/logging/log4j/log4j2/trunk@1582805 13f79535-47bb-0310-9956-ffa450edef68