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

Calculating dependencies ... done!
Dependency resolution took 1.04 s (backtrack: 0/20).

[ebuild  N     ] acct-group/lldpd-0-r3::gentoo  0 KiB
[ebuild  N     ] acct-user/lldpd-0-r3::gentoo  0 KiB
[ebuild  N     ] net-misc/lldpd-1.0.21:0/4::gentoo  USE="dot1 dot3 lldpmed readline seccomp -cdp -doc -edp -fdp -graph -old-kernel -sanitizers -snmp -sonmp -static-libs -test -valgrind -xml" 1953 KiB

Total: 3 packages (3 new), Size of downloads: 1953 KiB