[Cleanup] redis

Space before and after variable names, comparison with empty strings and
naming two tasks

redis/tasks/default-munin.yml

@@ -39,7 +39,7 @@
 - name: Enable redis munin plugin
   file:
     src: /usr/local/share/munin/plugins/redis_
-    dest: "/etc/munin/plugins/redis_{{item}}"
+    dest: "/etc/munin/plugins/redis_{{ item }}"
     state: link
   with_items:
     - connected_clients
@@ -67,7 +67,7 @@
     value: '{{ redis_password }}'
   notify: restart munin-node
   when:
-    - redis_password != ''
+    - redis_password
     - redis_password != None
     - (munin_redis_blocs_in_config.stdout | int) <= 1
   tags: redis
@@ -77,6 +77,6 @@
   debug:
     msg: "WARNING - It seems you have multiple redis sections in your munin-node configuration - Munin config NOT changed"
   when:
-    - redis_password != ''
+    - redis_password
     - redis_password != None
     - (munin_redis_blocs_in_config.stdout | int) > 1

redis/tasks/instance-munin.yml

@@ -39,7 +39,7 @@
 - name: Enable redis munin plugin
   file:
     src: /usr/local/share/munin/plugins/redis_
-    dest: "/etc/munin/plugins/{{ redis_instance_name }}_redis_{{item}}"
+    dest: "/etc/munin/plugins/{{ redis_instance_name }}_redis_{{ item }}"
     state: link
   with_items:
     - connected_clients

redis/tasks/main.yml

@@ -1,6 +1,7 @@
 ---
 
-- set_fact:
+- name: "Define if redis needs to restart or not"
+  set_fact:
     redis_restart_handler_name: "{{ redis_restart_if_needed | ternary('restart redis', 'restart redis (noop)') }}"
 
 - name: Redis is installed.
@@ -30,7 +31,8 @@
   tags:
     - redis
 
-- set_fact:
+- name: "Define which version of redis is installed"
+  set_fact:
     redis_installed_version: "{{ _redis_installed_version.stdout }}"
   check_mode: no
   tags: