Currently, tmux does not provide any reply to the enquiry character,
even if the parent terminal has one defined. This patch allows the
user to specify an answerback in a window option "enq-answerback"
with default value "".
I found this necessary for systems that expect a certain value in
respons
this.
>
> What is it used for? What does xterm reply?
>
>
>
> ---- Original message
> From: Aaron Oakley
> Date: 25/10/2013 20:33 (GMT+00:00)
> To: tmux-users@lists.sourceforge.net
> Subject: [PATCH] Add option to enable ENQ (^E) answerback
>
>
