update handle_errors/2 from defp to def

Author: nelsonic

lib/app/router.ex

@@ -20,7 +20,7 @@ defmodule App.Router do
     send_resp(conn, 404, "Oops!")
   end
 
-  defp handle_errors(conn, %{kind: kind, reason: reason, stack: stack}) do
+  def handle_errors(conn, %{kind: kind, reason: reason, stack: stack}) do
     IO.inspect(kind, label: :kind)
     IO.inspect(reason, label: :reason)
     IO.inspect(stack, label: :stack)