Fix yaml lint

defaults/main.yml

@@ -14,7 +14,7 @@ nginx_log_dir: '/var/log/nginx'
 nginx_resolver_hosts: ['8.8.8.8', '8.8.4.4']
 nginx_resolver_valid: '300s'
 nginx_resolver_timeout: '5s'
-nginx_error_log_level: 'warn' # http://nginx.org/en/docs/ngx_core_module.html#error_log
+nginx_error_log_level: 'warn'   # http://nginx.org/en/docs/ngx_core_module.html#error_log
 nginx_auto_config_httpv2: true
 nginx_default_site: null
 nginx_default_site_ssl: null