Fix some ansible-lint complaints.

roles/lan-client/tasks/main.yml

@@ -1,5 +1,6 @@
 ---
-- fail: msg="The machine's domain must not be empty."
+- name: check if domain name is available
+  fail: msg="The machine's domain must not be empty."
   when: ansible_domain | length == 0
 
 - name: preseed krb5-config realm
@@ -31,7 +32,7 @@
       - sssd-krb5
       - sssd-ldap
       - nfs-common
-    state: latest
+    state: latest # noqa package-latest
 
 - name: add URI to ldap.conf
   lineinfile:
@@ -48,7 +49,7 @@
 - name: enable pam_umask
   lineinfile:
     dest: /etc/pam.d/common-session
-    line: "session optional	pam_umask.so usergroups"
+    line: "session optional pam_umask.so usergroups"
 
 ## oddjob-mkhomedir works only with sec=sys for the NFSv4 share