Make the existing playbooks pass the new checks

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

iot/roles/influxdb/tasks/main.yaml

@@ -1,6 +1,7 @@
 ---
 # Tasks for InfluxDB role
-- getent:
+- name: Look up the InfluxDB user
+  getent:
     database: passwd
     key: "{{ influx_user }}"
     split: ":"
@@ -49,4 +50,3 @@
     volumes:
       - "{{ influx_directory }}/data:/var/lib/influxdb2"
       - "{{ influx_directory }}/config:/etc/influxdb2"
-