Make the existing playbooks pass the new checks

Strip trailing whitespace and blank lines, name the getent tasks, and fix Jinja spacing.

gitea/playbook-pg.yml

@@ -19,7 +19,8 @@
         name: "{{ container_image }}"
         source: pull
 
-    - getent:
+    - name: Look up the Gitea user
+      getent:
         database: passwd
         key: "{{ user }}"
         split: ":"
@@ -60,4 +61,3 @@
 #        dest: "/etc/nginx/sites-enabled/{{ http_conf }}"
 #        state: link
 #      notify: Reload Nginx
-