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

Calculating dependencies ... done!
Dependency resolution took 1.02 s (backtrack: 0/20).

[ebuild  N     ] app-crypt/argon2-20190702-r1:0/1::gentoo  USE="-static-libs" 1471 KiB
[ebuild  N     ] dev-libs/libfilezilla-0.57.0:0/59::gentoo  USE="-test" 574 KiB
[ebuild  N     ] net-libs/fzssh-1.4.0:0/14::gentoo  136 KiB

Total: 3 packages (3 new), Size of downloads: 2179 KiB