Improve locale configuration

templates/locale.conf.j2

@@ -1,2 +1,15 @@
 # {{ ansible_managed }}
-LANG={{ use_system_locale }}
+LANG="{{ system_locale_lang }}"
+LC_CTYPE="{{ system_locale_ctype }}"
+LC_NUMERIC="{{ system_locale_numeric }}"
+LC_TIME="{{ system_locale_time }}"
+LC_COLLATE="{{ system_locale_collate }}"
+LC_MONETARY="{{ system_locale_monetary }}"
+LC_MESSAGES="{{ system_locale_messages }}"
+LC_PAPER="{{ system_locale_paper }}"
+LC_NAME="{{ system_locale_name }}"
+LC_ADDRESS="{{ system_locale_address }}"
+LC_TELEPHONE="{{ system_locale_telephone }}"
+LC_MEASUREMENT="{{ system_locale_measurement }}"
+LC_IDENTIFICATION="{{ system_locale_identification }}"
+LC_ALL="{{ system_locale_all }}"

templates/locale.gen.j2

@@ -1,4 +1,4 @@
 # {{ ansible_managed }}
-{% for item in system_locales | default([]) %}
+{% for item in system_locales %}
 {{ item }}
 {% endfor %}