Bug 508772 - [simrel] Even further simplification of build.xml

Minor improvement in some "info" messages.

Change-Id: Icb2117a77c8d003b4accf18fd664f747be87a646
Signed-off-by: David Williams <david_williams@acm.org>
diff --git a/runTests.xml b/runTests.xml
index e2299e9..482a227 100644
--- a/runTests.xml
+++ b/runTests.xml
@@ -70,11 +70,11 @@
      could have some checks/tests.
   -->
   <target name="validateOnlyTests">
-    <echo message="No validation-only tests, yet" />
+    <echo message="No validation-only tests, yet (other then the aggregation validation itself)." />
   </target>
 
   <target name="cachedBuildTests">
-    <echo message="No cached build tests, yet" />
+    <echo message="No cached build tests, yet (other then the cached aggregation build itself)." />
   </target>
 
   <target