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

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

[ebuild  N     ] net-misc/socat-1.8.1.1::gentoo  USE="ipv6 readline ssl -tcpd" 593 KiB

Total: 1 package (1 new), Size of downloads: 593 KiB