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

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

[ebuild  N     ] app-admin/sysstat-12.7.9::gentoo  USE="nls -dcron -debug -lm-sensors (-selinux) (-systemd)" 1525 KiB

Total: 1 package (1 new), Size of downloads: 1525 KiB