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

Calculating dependencies ... done!
Dependency resolution took 1.50 s (backtrack: 0/20).

[ebuild     U  ] sys-libs/libxcrypt-4.5.2:0/1::gentoo [4.4.38-r1:0/1::gentoo] USE="(compat) (system) (-headers-only) -static-libs -test" 656 KiB

Total: 1 package (1 upgrade), Size of downloads: 656 KiB