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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild   R    ] sys-libs/readline-8.3_p3:0/8::gentoo  USE="(unicode) -static-libs -utils -verify-sig" 3346 KiB

Total: 1 package (1 reinstall), Size of downloads: 3346 KiB