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

Calculating dependencies ... done!
Dependency resolution took 0.99 s (backtrack: 0/20).

[ebuild  N     ] app-text/docbook-sgml-dtd-3.0-r5:3.0::gentoo  43 KiB

Total: 1 package (1 new), Size of downloads: 43 KiB