bug#28467: 25.2; erc-server-delayed-reconnect hangs emacs when internet lost

[Eli Zaretskii]

> From: Ernesto Alfonso <erjoalgo@gmail.com>
> Date: Fri, 15 Sep 2017 00:01:47 -0700
> 
> 1. connect to erc
> 2. disconnect from the internet
> 3. emacs freezes

Please attach the debugger to the frozen Emacs and show the C
backtrace.  If possible, try to find whether Emacs hangs or infloops,
and if the latter, where's the loop.  The instructions how to do that
are in etc/DEBUG, under "If the symptom of the bug is that Emacs fails
to respond".

Thanks.