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/xauth-1.1.5::gentoo  162 KiB
[ebuild  N     ] x11-apps/xrdb-1.2.3-r2::gentoo  141 KiB
[ebuild  N     ] x11-apps/xinit-1.4.4::gentoo  USE="-twm" 159 KiB

Total: 3 packages (3 new), Size of downloads: 461 KiB