Ensure standard locale in run_command (group5-batch8) (#11779)

* Fix locale env vars in run_command() calls for group5 batch8 modules

Set LANGUAGE=C and LC_ALL=C via run_command_environ_update to ensure
locale-independent output parsing in lxc_container, ip_netns,
and capabilities.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

* Add changelog fragment for PR #11779

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Sonnet 4.6 <noreply@anthropic.com>

changelogs/fragments/11779-group5-batch8-locale.yml

@@ -0,0 +1,10 @@
+bugfixes:
+  - capabilities - set ``LANGUAGE`` and ``LC_ALL`` to ``C`` in ``run_command()`` calls to ensure locale-independent output parsing
+    (https://github.com/ansible-collections/community.general/issues/11737,
+    https://github.com/ansible-collections/community.general/pull/11779).
+  - ip_netns - set ``LANGUAGE`` and ``LC_ALL`` to ``C`` in ``run_command()`` calls to ensure locale-independent output parsing
+    (https://github.com/ansible-collections/community.general/issues/11737,
+    https://github.com/ansible-collections/community.general/pull/11779).
+  - lxc_container - set ``LANGUAGE`` and ``LC_ALL`` to ``C`` in ``run_command()`` calls to ensure locale-independent output parsing
+    (https://github.com/ansible-collections/community.general/issues/11737,
+    https://github.com/ansible-collections/community.general/pull/11779).

plugins/modules/capabilities.py

@@ -183,6 +183,7 @@ def main():
         ),
         supports_check_mode=True,
     )
+    module.run_command_environ_update = {"LANGUAGE": "C", "LC_ALL": "C"}
 
     CapabilitiesModule(module)
 

plugins/modules/ip_netns.py

@@ -122,6 +122,7 @@ def main():
         },
         supports_check_mode=True,
     )
+    module.run_command_environ_update = {"LANGUAGE": "C", "LC_ALL": "C"}
 
     network_namespace = Namespace(module)
     if module.check_mode:

plugins/modules/lxc_container.py

@@ -1432,6 +1432,7 @@ def main():
         supports_check_mode=False,
         required_if=([("archive", True, ["archive_path"])]),
     )
+    module.run_command_environ_update = {"LANGUAGE": "C", "LC_ALL": "C"}
 
     if not HAS_LXC:
         module.fail_json(msg="The `lxc` module is not importable. Check the requirements.")