Greetings!

When I quit Slime with comma and 'quit', Emacs shows error message:

error in process sentinel: Connection closed.

Backtrace:

Debugger entered--Lisp error: (error "Connection closed.") signal(error ("Connection closed.")) error("Connection closed.") (cond ((null conn) (error "Not connected.")) ((not ...) (error "Connection closed.")) (t conn)) (let ((conn ...)) (cond (... ...) (... ...) (t conn))) slime-connection() (eq (slime-connection) slime-default-connection) (and (slime-connected-p) (eq (slime-connection) slime-default-connection)) (if (and (slime-connected-p) (eq ... slime-default-connection)) (progn (setq slime-state-name name) (force-mode-line-update))) (when (and (slime-connected-p) (eq ... slime-default-connection)) (setq slime-state-name name) (force-mode-line-update)) slime-set-state("[not connected]") slime-net-sentinel(#<process SLIME Lisp> "exited abnormally with code 256\n")

It is not fatal, but annoying. I tried to hack the code myself, but I still do not understand full code, so I am afraid to break something.