Also mention pattern matching on hint

Author: josevalim

lib/elixir/lib/module/types.ex

@@ -421,7 +421,7 @@ defmodule Module.Types do
 
   defp format_message_hint({:sized_and_unsize_tuples, {size, var}}) do
     """
-    HINT: use "is_tuple(#{Macro.to_string(var)}) and \
+    HINT: use pattern matching or "is_tuple(#{Macro.to_string(var)}) and \
     tuple_size(#{Macro.to_string(var)}) == #{size}" to guard a sized tuple.
     """
   end

lib/elixir/test/elixir/module/types/types_test.exs

@@ -344,7 +344,7 @@ defmodule Module.Types.TypesTest do
                  # types_test.ex:1
                  {_} = foo
 
-             HINT: use "is_tuple(foo) and tuple_size(foo) == 1" to guard a sized tuple.
+             HINT: use pattern matching or "is_tuple(foo) and tuple_size(foo) == 1" to guard a sized tuple.
              """
     end