Changelog for ruby2.6-rubygem-hkdf-0.3.0-2.1.x86_64.rpm :

* Sat Jan 19 2019 mrueckertAATTsuse.de- rb_build_ruby_abi needs to be rb_build_ruby_abis
* Sat May 19 2018 mrueckertAATTsuse.de- initial package