Merge pull request #19212 from sivsushruth/doc_fix

Doc fix [ci skip]

actionpack/lib/action_controller/metal/params_wrapper.rb

@@ -131,7 +131,7 @@ def name
       private
       # Determine the wrapper model from the controller's name. By convention,
       # this could be done by trying to find the defined model that has the
-      # same singularize name as the controller. For example, +UsersController+
+      # same singular name as the controller. For example, +UsersController+
       # will try to find if the +User+ model exists.
       #
       # This method also does namespace lookup. Foo::Bar::UsersController will