fix linting

tasks/prepare_redhat_7.yml

@@ -1,5 +1,5 @@
 ---
-- name: Install RH7 dependencies
+- name: Install rh7 dependencies
   package:
     name: "{{ item }}"
     state: present

tasks/prepare_redhat_8.yml

@@ -9,11 +9,11 @@
           stream=
           profiles=
           state=disabled
-        mode: 644
+        mode: 0644
         owner: root
         group: root
 
-    - name: Install RH8 dependencies
+    - name: Install rh8 dependencies
       package:
         name: "{{ item }}"
         state: present