rpm-build from home:fbui:sysusers project

需要 openSUSE Tumbleweed ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:fbui:sysusers/openSUSE_Tumbleweed/home:fbui:sysusers.repo
zypper refresh
zypper install rpm-build