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

Calculating dependencies ... done!
Dependency resolution took 1.09 s (backtrack: 0/20).

[ebuild  N     ] dev-util/colm-0.14.7-r4::gentoo  USE="-doc" 3038 KiB
[ebuild  N     ] dev-util/ragel-7.0.4-r3::gentoo  USE="-doc" 1618 KiB

Total: 2 packages (2 new), Size of downloads: 4656 KiB