Comment # 4 on bug 1165366 from Stefan Hundhammer

There was a change recently with moving files from /etc to /usr/etc .
/etc/services and /etc/protocols were some of those files, and the transition
was not exactly smooth. You might have fallen into the same trap.

https://en.opensuse.org/openSUSE:Packaging_UsrEtc
https://lists.opensuse.org/opensuse-factory/2020-02/msg00027.html

(there are probably some more threads about this on the opensuse-factory
mailing list)