fix style issues

lib/memex_web/controllers/user_reset_password_controller.ex

@@ -40,7 +40,7 @@ defmodule MemexWeb.UserResetPasswordController do
   # leaked token giving the user access to the account.
   def update(conn, %{"user" => user_params}) do
     case Accounts.reset_user_password(conn.assigns.user, user_params) do
-      {:ok, _} ->
+      {:ok, _user} ->
         conn
         |> put_flash(:info, dgettext("prompts", "password reset successfully."))
         |> redirect(to: ~p"/users/log_in")