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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] x11-apps/xhost-1.0.10::gentoo  134 KiB
[ebuild  N     ] x11-apps/xauth-1.1.5::gentoo  162 KiB
[ebuild  N     ] x11-misc/sux-1.0.1::gentoo  11 KiB
[ebuild  N     ] app-portage/cfg-update-1.8.9-r2::gentoo  USE="X" 159 KiB

Total: 4 packages (4 new), Size of downloads: 465 KiB