set preserve hostname correctly (yaml format)

roles/etcHosts/tasks/main.yml

@@ -21,7 +21,10 @@
   when: ansible_distribution == "Debian" and ansible_distribution_major_version == "8"
 
 - name: set preserve hostname on CentOS
-  lineinfile: dest=/etc/cloud/cloud.cfg line='preserve_hostname=True'
+  lineinfile: 
+  args:
+    dest: /etc/cloud/cloud.cfg 
+    line: "preserve_hostname: True"
   sudo: true
   when: ansible_distribution == "CentOS" and ansible_distribution_major_version == "7"