Fixed: chroot-installation_stretch_install_kde-full_upgrade_to_sid/64

[jenkins]

See 
https://jenkins.debian.net/job/chroot-installation_stretch_install_kde-full_upgrade_to_sid/64//console
 or just 
https://jenkins.debian.net/job/chroot-installation_stretch_install_kde-full_upgrade_to_sid/64/
 for more information.