lint yaml files

.yamllint

ad-auth/tasks/kerberos.yml

ad-auth/tasks/ldap.yml

ad-auth/tasks/main.yml

ad-auth/tasks/pam.yml

ad-auth/tasks/sssd.yml

ad-auth/tasks/sudo.yml

ad-server-replication/defaults/main.yml

ad-server-replication/handlers/main.yml

ad-server-replication/tasks/kerberos.yml

ad-server-replication/tasks/main.yml

ad-server/defaults/main.yml

ad-server/handlers/main.yml

ad-server/tasks/main.yml

lvm-snapshots/tasks/main.yml

nfs-client/defaults/main.yml

nfs-client/tasks/main.yml

nfs-server/handlers/main.yml

nfs-server/tasks/main.yml