show extra packages when running task

tasks/main.yml

@@ -79,7 +79,7 @@
   become: true
   when: "hostname is defined and nrec_instance | bool"
 
-- name: "install extra packages if defined"
+- name: "install extra packages {{ centos_7_extra_packages | default ([]) }} if defined"
   yum:
     name: "{{ centos7_extra_packages }}"
   become: true