[LANG-943] Test DurationFormatUtilsTest.testEdgeDuration fails in JDK 1.6, 1.7 and 1.8, BRST time zone

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/lang/trunk@1559802 13f79535-47bb-0310-9956-ffa450edef68