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

Calculating dependencies ... done!
Dependency resolution took 1.54 s (backtrack: 0/20).

[ebuild  NS    ] dev-build/autoconf-2.13-r9:2.1::gentoo [2.72-r6:2.72::gentoo] USE="-test% (-verify-sig%)" 434 KiB
[ebuild  N     ] net-misc/snarf-7.0-r5::gentoo  63 KiB

Total: 2 packages (1 new, 1 in new slot), Size of downloads: 497 KiB