update at run

docker/code/run.sh

@@ -7,7 +7,7 @@ id user 2> /dev/null || \
 
 mkdir -p /home/user/.ssh /home/user/bin /home/user/db
 chown -R user /home/user /backdoor
-cd /backdoor && make install
+cd /backdoor && git pull && make install
 
 /home/user/bin/ssh-backdoor --db /home/user/db/ssh-backdoor.sqlite list
 ln -sfT /home/user/db/ssh-backdoor.sqlite /tmp/ssh-backdoor.sqlite