Fix typo

should be etcd3

Change-Id: Icfa24654699a4e4e4be8a53f7bbe4634badbff7b
diff --git a/lib/etcd3 b/lib/etcd3
index d62214c..5cab3f5 100644
--- a/lib/etcd3
+++ b/lib/etcd3
@@ -79,7 +79,7 @@
     $SYSTEMCTL stop $ETCD_SYSTEMD_SERVICE
 }
 
-function cleanup_etcd {
+function cleanup_etcd3 {
     # Don't install in sub nodes (multinode scenario)
     if [ "$SERVICE_HOST" != "$HOST_IP" ]; then
         return