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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] mail-client/s-nail-14.9.25::gentoo  USE="(split-usr) ssl -idn -kerberos -net" 786 KiB

Total: 1 package (1 new), Size of downloads: 786 KiB