
The sshd_config file that we put everywhere has an invalid value for where the sftp command is. On RedHat, it's in /usr/libexec - which means that it is not possible to use SFTP to interact with our CentOS machines. Replace the static file with a template so that we can substitute the correct value based on which distro it is. Change-Id: Ia9ba88199f4ff024a904431821926dbb26f35ad6