make _ an allowed variable name

apple1417 · apple1417 · commit cee5c9dbf5b9 · 2025-03-22T18:06:51.000+13:00
diff --git a/{{ cookiecutter.__project_slug }}/{% if cookiecutter.include_cpp %}.clang-tidy{% endif %} b/{{ cookiecutter.__project_slug }}/{% if cookiecutter.include_cpp %}.clang-tidy{% endif %}
@@ -51,4 +51,6 @@ CheckOptions:
     readability-identifier-naming.NamespaceCase:        lower_case
     readability-identifier-naming.ParameterCase:        lower_case
     readability-identifier-naming.VariableCase:         lower_case
+
+    readability-identifier-length.IgnoredVariableNames: _
 ---
