experiment to see if threading issue with unpackupdatejars
diff --git a/releng.wtpbuilder/scripts/build/buildutilities.xml b/releng.wtpbuilder/scripts/build/buildutilities.xml
index fa1a3ee..6d83c22 100644
--- a/releng.wtpbuilder/scripts/build/buildutilities.xml
+++ b/releng.wtpbuilder/scripts/build/buildutilities.xml
@@ -41,7 +41,7 @@
 		<unpackUpdateJars site="${tmpsite}/eclipse" output="${tmpsite}/unpacked/eclipse"/>
 	
 	    <!-- experiment to see if threading issues with unpackUpdateJars -->
-	    <sleep second="180"/>
+	    <sleep seconds="180"/>
 		
 		<!-- add copy of legal doc's here, product.ini, etc., before re-zipping -->
 		<copy todir="${tmpsite}/unpacked/eclipse">