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

Calculating dependencies ... done!
Dependency resolution took 1.51 s (backtrack: 0/20).

[ebuild     U  ] net-misc/dhcpcd-10.5.0::gentoo [10.3.0::gentoo] USE="embedded ipv6 udev -debug -privsep -verify-sig%" 282 KiB

Total: 1 package (1 upgrade), Size of downloads: 282 KiB