crosh: Disable connection escape sequence in ssh.

bin/crosh

 #!/bin/dash
 # Copyright (c) 2009-2010 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 TRY_BASH=1
 if echo "$@" | grep -q -- "--dash"; then
   TRY_BASH=0
 fi
 
@@ skipping 168 matching lines @@
   fi
 
   if [ ! -z "$port" ]; then
     if ! check_digits "$port"; then
       echo "Invalid port: $port"
       return
     fi
   fi
 
   echo "open: host: $host, user: $user, port: $port"
-  ssh -F /etc/ssh/ssh_config -p "$port" "$user@$host"
+  ssh -e none -F /etc/ssh/ssh_config -p "$port" "$user@$host"
 }
 
 cmd_ssh_forget_host() {
   local known_hosts="$(readlink -f $HOME/.ssh/known_hosts)"
 
   # Test that the known_hosts is a regular file and is not 0 length.
   if [ ! -f "$known_hosts" -o ! -s "$known_hosts" ]; then
     echo "No known hosts."
     return
   fi
@@ skipping 284 matching lines @@
   done
 }
 
 INPUTRC="$(dirname "$0")/inputrc.crosh"
 HISTFILE="$HOME/.crosh_history"
 shell_history -r $HISTFILE
 
 repl
 
 shell_history -w $HISTFILE