Arvados

http://doc.arvados.org/user/tutorials/tutorial-firstscript.html

~$ git clone git@git.qr1hi.arvadosapi.com:jsheffi.git
Cloning into 'jsheffi'...
The authenticity of host 'git.qr1hi.arvadosapi.com (10.13.26.53)' can't be established.
RSA key fingerprint is a6:b0:be:4d:7a:5d:4e:ba:b4:04:17:82:9f:ee:40:dc.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'git.qr1hi.arvadosapi.com,10.13.26.53' (RSA) to the list of known hosts.
warning: You appear to have cloned an empty repository.

I would make sure to note that this warning will come up, is expected behavior, and that the user should say yes, and that the following warnings are ok to get.