Suggest inverse_of: nil instead of false

Followup: rails#50883
Ref: rails#50284 (comment)

Author: byroot

activerecord/lib/active_record/reflection.rb

@@ -715,7 +715,7 @@ def automatic_inverse_of
                     " is disabled.\n\n" \
                     "If automatic inference is intended, you can consider enabling" \
                     " `config.active_record.automatically_invert_plural_associations`.\n\n" \
-                    "If automatic inference is not intended, you can silence this warning by defining the association with `inverse_of: false`."
+                    "If automatic inference is not intended, you can silence this warning by defining the association with `inverse_of: nil`."
                   )
                   reflection = nil
                 end

guides/source/configuring.md

@@ -1090,7 +1090,7 @@ And on a per-association basis:
 class Comment < ApplicationRecord
   self.automatically_invert_plural_associations = true
 
-  belongs_to :post, inverse_of: false
+  belongs_to :post, inverse_of: nil
 end
 ```