Disambiguate a comment

cluster/gce/gci/configure-helper.sh

@@ -2600,7 +2600,7 @@ function main() {
     fi
   fi
 
-  # generate the controller manager, scheduler and CA tokens here since they are only used on the master.
+  # generate the controller manager, scheduler and cluster autoscaler tokens here since they are only used on the master.
   KUBE_CONTROLLER_MANAGER_TOKEN=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null)
   KUBE_SCHEDULER_TOKEN=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null)
   KUBE_CLUSTER_AUTOSCALER_TOKEN=$(dd if=/dev/urandom bs=128 count=1 2>/dev/null | base64 | tr -d "=+/" | dd bs=32 count=1 2>/dev/null)