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

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

[ebuild  N     ] acct-group/wwwoffle-0-r2::gentoo  0 KiB
[ebuild  N     ] acct-user/wwwoffle-0-r2::gentoo  0 KiB
[ebuild  N     ] net-proxy/wwwoffle-2.9j::gentoo  USE="zlib -gnutls" 1085 KiB

Total: 3 packages (3 new), Size of downloads: 1085 KiB