fix bug where attaching to dead session won't give underlying exit code #45
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If dvtm dies, and you run
:|abduco -a session
, abduco will often exitwithout giving you the exit code, and without removing the socket from
~/.abduco.
We resolve this by first sending the client either an EXIT or an empty
CONTENT packet.
Only after the client recieves it, we set the socket to non-blocking.
Fixes: #44