assert methods which get message as a parameter should print "compared" values anyway

suggested fix:
diff -r 3d018f7c144e test/testlibrary/com/oracle/java/testlibrary/Asserts.java
--- a/test/testlibrary/com/oracle/java/testlibrary/Asserts.java Fri Nov 14 16:55:27 2014 +0300
+++ b/test/testlibrary/com/oracle/java/testlibrary/Asserts.java Sat Nov 15 00:35:05 2014 +0300
@@ -234,8 +234,7 @@
      * @see #assertGreaterThan(T, T, String)
      */
     public static <T extends Comparable<T>> void assertGreaterThan(T lhs, T rhs) {
- String msg = "Expected that " + format(lhs) + " > " + format(rhs);
- assertGreaterThan(lhs, rhs, msg);
+ assertGreaterThan(lhs, rhs, null);
     }
 
     /**
@@ -247,7 +246,7 @@
      * @throws RuntimeException if the assertion isn't valid.
      */
     public static <T extends Comparable<T>> void assertGreaterThan(T lhs, T rhs, String msg) {
- assertTrue(compare(lhs, rhs, msg) > 0, msg);
+ assertTrue(compare(lhs, rhs, msg) > 0, (msg == null ? "Expected that " : msg) + " " + format(lhs) + " > " + format(rhs));
     }