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

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

[ebuild  N     ] media-gfx/qrencode-4.1.1-r1:0/4::gentoo  USE="png -test" 451 KiB

Total: 1 package (1 new), Size of downloads: 451 KiB