File update.sh of Package installation-images

#!/bin/sh
( cd openSUSE\:Factory/installation-images && osc up )
rm *.tar.xz
cp -a openSUSE\:Factory/installation-images/* .
osc ar
id=$(curl -s https://download.opensuse.org/slowroll/next/repo/oss/boot/x86_64/loader/initrd | xz -cd | cpio -i --to-stdout linuxrc.config | grep -m 1 InitrdID | grep -o 20.*)
sed -i "s/export instsys_build_id.*/### by BMWiedemann\nexport instsys_build_id=$id/" *.spec