backtrace return unless positive

lib/formatters/basic_formatter.rb

@@ -170,7 +170,7 @@ class BasicFormatter < SemanticLogger::Formatters::Color # rubocop:disable Metri
   end
 
   def backtrace(stack)
-    nil unless stack.count.positive?
+    return unless stack.count.positive?
 
     "\n#{before_message} #{ANSI_ERROR}↳ #{stack.join("\n#{before_message} #{ANSI_ERROR}↳ ")}#{color_map.clear}"
   end