Remove :all from *args options in AbstractController.helper

actionpack/lib/abstract_controller/helpers.rb

@@ -59,7 +59,7 @@ def #{meth}(*args, &blk)                               # def current_user(*args,
       # The +helper+ class method can take a series of helper module names, a block, or both.
       #
       # ==== Options
-      # * <tt>*args</tt> - Module, Symbol, String, :all
+      # * <tt>*args</tt> - Module, Symbol, String
       # * <tt>block</tt> - A block defining helper methods
       #
       # When the argument is a module it will be included directly in the template class.