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

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

[ebuild  N     ] acct-group/nofiles-0-r3::gentoo  0 KiB
[ebuild  N     ] acct-user/darkstat-0-r2::gentoo  0 KiB
[ebuild  N     ] net-analyzer/darkstat-3.0.721-r1::gentoo  102 KiB

Total: 3 packages (3 new), Size of downloads: 102 KiB