Comment # 7 on bug 1160314 from Guillaume GARDET

According to
https://build.opensuse.org/package/view_file/SUSE:Templates:Images:SLE-15/kiwi-templates-SLES15-JeOS/config.sh?expand=1

We are just missing 
  baseUpdateSysConfig /etc/sysconfig/snapper SNAPPER_CONFIGS root