improve promote script to use rsync instead of cp
diff --git a/releng.control/somePathDirectory/commonVariations.shsource b/releng.control/somePathDirectory/commonVariations.shsource
index 3d8ffa6..2add8dc 100644
--- a/releng.control/somePathDirectory/commonVariations.shsource
+++ b/releng.control/somePathDirectory/commonVariations.shsource
@@ -115,3 +115,6 @@
 export SKIPUSERS=true
 
 export DOWNLOAD_ROOT=/var/www/html/buildhome/
+
+# normally not required. Only required if build machine or user, and download machine or user are not the same
+export REMOTE_SSH_COMMAND=""