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/dehydrated-0-r2::gentoo  0 KiB
[ebuild  N     ] acct-user/dehydrated-0-r2::gentoo  0 KiB
[ebuild  N     ] app-crypt/dehydrated-0.7.1-r2::gentoo  USE="cron -verify-sig" 118 KiB

Total: 3 packages (3 new), Size of downloads: 118 KiB