The source code for Pkg::SetAdditionalLocales: https://github.com/yast/yast-pkg-bindings/blob/master/src/Locale.cc#L141-L185 (last change: 13 years ago) Called from here: https://github.com/yast/yast-packager/blob/master/src/modules/Packages.rb#L2073 (last change: 2023-01-26) and here: https://github.com/yast/yast-packager/blob/master/src/lib/packager/clients/software_proposal.rb#L173 (last change: 2022-01-12)