update xsl build to use release specific pre-req dependencies
diff --git a/releng.control/cc_config.xml b/releng.control/cc_config.xml
index a79bece..2b475bb 100644
--- a/releng.control/cc_config.xml
+++ b/releng.control/cc_config.xml
@@ -221,7 +221,8 @@
         </modificationset>
         <schedule
             interval="${time.oneHour}">
-            <ant>
+            <ant
+              antscript="${env.RELENG_CONTROL}/ant_low_priority_helios.sh">
                 <property
                     name="buildType"
                     value="I"/>