Improve path_identification_middleware docblock

assets/config.php

@@ -91,7 +91,7 @@
         /**
          * Identification middleware tenancy recognizes as path identification middleware.
          *
-         * This is used during determining whether whether a path identification is used
+         * This is used for determining if a path identification middleware is used
          * during operations specific to path identification, e.g. forgetting the tenant parameter in ForgetTenantParameter.
          *
          * If you're using a custom path identification middleware, add it here.