[Qa-jenkins-scm] Fixed: chroot-installation_stretch_install_full_desktop_upgrade_to_sid/3

[jenkins at jenkins.debian.net]

See https://jenkins.debian.net/job/chroot-installation_stretch_install_full_desktop_upgrade_to_sid/3//console or just https://jenkins.debian.net/job/chroot-installation_stretch_install_full_desktop_upgrade_to_sid/3/ for more information.