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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] app-arch/lzlib-1.16::gentoo  USE="-verify-sig" 115 KiB
[ebuild  N     ] app-arch/tarlz-0.31::gentoo  USE="-test -verify-sig" 127 KiB

Total: 2 packages (2 new), Size of downloads: 242 KiB