Update galaxy.yml, make ansible-lint happier

roles/wordpress/tasks/main.yml

@@ -2,7 +2,9 @@
 
 - name: Add memcached php extension to container
   set_fact:
-    dockerfile: "{{ dockerfile | combine({'run': ['apt-get update && apt-get install -y libmemcached-dev zlib1g-dev && pecl install memcached-3.2.0 && docker-php-ext-enable memcached']}, list_merge='append') }}"
+    dockerfile: "{{ dockerfile | combine({'run': \
+      ['apt-get update && apt-get install -y libmemcached-dev zlib1g-dev && \
+      pecl install memcached-3.2.0 && docker-php-ext-enable memcached']}, list_merge='append') }}"
   when: "'memcached' in docker_additional_services"
 
 - name: Add pdo_mysql php extension to container
@@ -32,4 +34,3 @@
       WORDPRESS_CONFIG_EXTRA: |
         define('WP_SITEURL', 'https://{{ docker_vhost_domains[docker_service_name][0] }}');
         define('WP_HOME', 'https://{{ docker_vhost_domains[docker_service_name][0] }}');
-