Normalize bools in tests. (#589)

tests/integration/targets/docker_swarm_service/tasks/main.yml

@@ -39,44 +39,44 @@
         name: "{{ item }}"
         state: absent
       loop: "{{ service_names }}"
-      ignore_errors: yes
+      ignore_errors: true
 
     - name: Make sure all networks are removed
       docker_network:
         name: "{{ item }}"
         state: absent
-        force: yes
+        force: true
       loop: "{{ network_names }}"
-      ignore_errors: yes
+      ignore_errors: true
 
     - name: Make sure all configs are removed
       docker_config:
         name: "{{ item }}"
         state: absent
-        force: yes
+        force: true
       loop: "{{ config_names }}"
-      ignore_errors: yes
+      ignore_errors: true
 
     - name: Make sure all volumes are removed
       docker_volume:
         name: "{{ item }}"
         state: absent
       loop: "{{ volume_names }}"
-      ignore_errors: yes
+      ignore_errors: true
 
     - name: Make sure all secrets are removed
       docker_secret:
         name: "{{ item }}"
         state: absent
-        force: yes
+        force: true
       loop: "{{ secret_names }}"
-      ignore_errors: yes
+      ignore_errors: true
 
     - name: Make sure swarm is removed
       docker_swarm:
         state: absent
-        force: yes
-      ignore_errors: yes
+        force: true
+      ignore_errors: true
   when: docker_py_version is version('2.0.2', '>=') and docker_api_version is version('1.25', '>=')
 
 - fail: msg="Too old docker / docker-py version to run docker_swarm_service tests!"