CLI: mix format

Author: michaelklishin

deps/rabbitmq_cli/lib/rabbitmq/cli/ctl/commands/wait_command.ex

@@ -247,6 +247,7 @@ defmodule RabbitMQ.CLI.Ctl.Commands.WaitCommand do
         case :file.read_file(pid_file) do
           {:ok, <<>>} ->
             {:error, :loop}
+
           {:ok, bin} ->
             case Integer.parse(bin) do
               :error ->