fixing a text which is not passing under MacOS with JDK 1.7

git-svn-id: https://svn.apache.org/repos/asf/ant/core/trunk@1452156 13f79535-47bb-0310-9956-ffa450edef68

src/tests/junit/org/apache/tools/ant/util/JavaEnvUtilsTest.java

@@ -111,7 +111,7 @@ public class JavaEnvUtilsTest extends TestCase {
             assertTrue(j+" is normalized and in the JDK dir",
                        j.startsWith(javaHomeParent));
 
-            if (Os.isFamily("mac")) {
+            if (Os.isFamily("mac") && JavaEnvUtils.getJavaVersionNumber() <= JavaEnvUtils.VERSION_1_6) {
                 assertTrue(j+" is normalized and in the JRE dir",
                            j.startsWith(javaHome));
             } else {