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

Calculating dependencies ... done!
Dependency resolution took 1.06 s (backtrack: 0/20).

[ebuild  N     ] app-arch/lzlib-1.16::gentoo  USE="-verify-sig" 115 KiB
[ebuild  N     ] app-arch/tarlz-0.29::gentoo  USE="-test -verify-sig" 121 KiB

Total: 2 packages (2 new), Size of downloads: 236 KiB