apache2ctl outputs to stderr not stdout

tasks/main.yml

@@ -61,18 +61,18 @@
     register: apache2ctl_configtest
   
   - debug:
-      msg: "{{ apache2ctl_configtest.stdout }}"
+      msg: "{{ apache2ctl_configtest.stderr }}"
       verbosity: 1 
   
   - name: Apache restarted
     service:
       name: apache2
       state: restarted
-    when: '"Syntax OK" in apache2ctl_configtest.stdout'
+    when: '"Syntax OK" in apache2ctl_configtest.stderr'
   
   - name: Fail if Apache configtest is not OK
     fail:
       msg: "{{ apache2ctl_configtest.stdout }}"
-    when: '"Syntax OK" not in apache2ctl_configtest.stdout'
+    when: '"Syntax OK" not in apache2ctl_configtest.stderr'
  
   when: apache_packages.changed or apache_conf.changed or apache_modules.changed or apache_ssl.changed or apache_localhost.changed