These are the packages that would be merged, in order:

Calculating dependencies ... done!
Dependency resolution took 1.54 s (backtrack: 0/20).

[ebuild     U  ] sys-apps/kbd-2.9.0-r2::gentoo [2.9.0-r1::gentoo] USE="bzip2 nls pam zlib -lzma (-selinux) -test -zstd" 1492 KiB

Total: 1 package (1 upgrade), Size of downloads: 1492 KiB