Update makefile not to check the file generated by script

- makefile find filter updated
- some yaml files were formatted (to avoid future test failed)

Change-Id: I241d4c35733f045a18a328a3dead045e2c6d7292
diff --git a/playbooks/jenkins-playbook.yml b/playbooks/jenkins-playbook.yml
index cb38026..a06e64f 100644
--- a/playbooks/jenkins-playbook.yml
+++ b/playbooks/jenkins-playbook.yml
@@ -1,3 +1,4 @@
+---
 # Ansible playbook to configure jenkins
 
 - name: Configure jenkins