added comments
diff --git a/releng.control/commonVariations.shsource b/releng.control/commonVariations.shsource
index a904be7..ca11c31 100644
--- a/releng.control/commonVariations.shsource
+++ b/releng.control/commonVariations.shsource
@@ -31,6 +31,8 @@
 
 export STANDARD_PROPERTIES_DIR=${BUILD_HOME}/releng.control/standardMachineProperties
 
+# these are the required pre-req software needed, that is, directory names, 
+# installed under the apps directroy, that is ${BUILD_HOME}/apps 
 export BUILD_BUILDMASTER_EMAIL=wtpBuild@eclipse.org
 export BUILD_RETURN_NAME=wtpBuild
 export BUILD_RESULT_URL=http://build.eclipse.org:7777/cruisecontrol/buildresults
diff --git a/releng.control/somePathDirectory/commonVariations.shsource b/releng.control/somePathDirectory/commonVariations.shsource
index b7cd16f..c9d66c0 100644
--- a/releng.control/somePathDirectory/commonVariations.shsource
+++ b/releng.control/somePathDirectory/commonVariations.shsource
@@ -20,6 +20,8 @@
 echo "remember to check X virtual frame buffer is running for headless JUnit testing";
 ps -ef | grep Xvfb
 
+# these are the required pre-req software needed, that is, directory names, 
+# installed under the apps directroy, that is ${BUILD_HOME}/apps 
 export JAVA_4_DIR="j2sdk1.4.2_15"
 export JAVA_5_DIR="jdk1.5.0_09"
 export ANT_DIR="apache-ant-1.7.0"