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

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

[ebuild   R    ] app-text/docbook-xml-dtd-4.2-r3:4.2::gentoo  77 KiB

Total: 1 package (1 reinstall), Size of downloads: 77 KiB