explicit_namespace.rb in zeitwerk-2.5.0.beta4

- old
+ new

@@ -1,4 +1,6 @@
+# frozen_string_literal: true
+
 module Zeitwerk
   # Centralizes the logic for the trace point used to detect the creation of
   # explicit namespaces, needed to descend into matching subdirectories right
   # after the constant has been defined.
   #