change ownership for private key to bus

aux/DIU-deploy-site-specific

@@ -49,6 +49,7 @@ DIU_UI=$BASEDIR/diu_ui_site_specific.js
 if [[ -e "$SSH_FILE" ]] ; then
   echo "# deploying SSH file $SSH_FILE to /home/bus/.ssh"
   cp -L -f "$SSH_FILE" /home/bus/.ssh/id_rsa
+  chown bus:bus /home/bus/.ssh/id_rsa
   chmod a-rwx /home/bus/.ssh/id_rsa
   chmod u+r /home/bus/.ssh/id_rsa
 else