Run mix format

Author: achempion

lib/waffle/file.ex

@@ -215,7 +215,7 @@ defmodule Waffle.File do
           {:ok, :retry} -> request(remote_path, headers, options, tries + 1)
           {:error, :out_of_tries} -> {:error, :recv_timeout}
         end
-        
+
       {:ok, 503, _headers, client_ref} = response ->
         case retry(tries, options) do
           {:ok, :retry} ->
@@ -230,7 +230,6 @@ defmodule Waffle.File do
         :hackney.close(client_ref)
         {:error, {:waffle_hackney_error, response}}
 
-
       _err ->
         {:error, :waffle_hackney_error}
     end