Fix redirect to terms path when not logged in

This was missed during #3147 since it wasn't covered by a test.

app/controllers/users_controller.rb

@@ -30,7 +30,7 @@ class UsersController < ApplicationController
         # Already agreed to terms, so just show settings
         redirect_to :action => :account, :display_name => current_user.display_name
       elsif current_user.nil? && session[:new_user].nil?
-        redirect_to :action => :login, :referer => request.fullpath
+        redirect_to login_path(:referer => request.fullpath)
       end
     end
   end