Fixes errors when running in check mode

tasks/locales-debian.yml

@@ -13,7 +13,7 @@
 - name: Extract LANG from current locale configuration
   set_fact:
     locale_lang: "{{ locale_status.stdout | regex_search('LANG=([^\n]+)', '\\1') | first }}"
-  when: local_status.stdout is defined
+  when: not ansible_check_mode
 
 - debug:
     var: locale_lang
@@ -21,5 +21,5 @@
 - name: Set default locale
   command: localectl set-locale LANG={{ locales_default }}
   when:
-    - locale_lang is defined
+    - not ansible_check_mode
     - locale_lang != locales_default