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

Calculating dependencies ... done!
Dependency resolution took 0.98 s (backtrack: 0/20).

[ebuild  N     ] sys-fs/f2fs-tools-1.16.0-r1:0/10::gentoo  USE="-lz4 -lzo (-selinux)" 260 KiB

Total: 1 package (1 new), Size of downloads: 260 KiB