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

Calculating dependencies ... done!
Dependency resolution took 1.05 s (backtrack: 0/20).

[ebuild  N     ] x11-apps/xrdb-1.2.3-r2::gentoo  141 KiB
[ebuild  N     ] x11-apps/sessreg-1.1.4::gentoo  134 KiB
[ebuild  N     ] x11-apps/xconsole-1.1.1::gentoo  135 KiB
[ebuild  N     ] x11-apps/xsm-1.0.6::gentoo  157 KiB
[ebuild  N     ] x11-apps/xauth-1.1.5::gentoo  162 KiB
[ebuild  N     ] x11-apps/xinit-1.4.4::gentoo  USE="-twm" 159 KiB
[ebuild  N     ] x11-apps/xdm-1.1.17::gentoo  USE="pam truetype (-systemd) -xinerama -xpm" 416 KiB

Total: 7 packages (7 new), Size of downloads: 1302 KiB