"command" module no longer supports "warn" argument (#169)

* "command" module no longer supports "warn" argument

* correct indetation lint errors

roles/k3s/master/tasks/main.yml

@@ -66,8 +66,6 @@
                       --unit=k3s-init \
                       k3s server {{ server_init_args }}"
     creates: "{{ systemd_dir }}/k3s.service"
-  args:
-    warn: false  # The ansible systemd module does not support transient units
 
 - name: Verification
   block: