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

Calculating dependencies ... done!
Dependency resolution took 1.49 s (backtrack: 0/20).

[ebuild     U  ] sys-apps/attr-2.6.0::gentoo [2.5.2-r1::gentoo] USE="nls -debug -static-libs -verify-sig%" 336 KiB

Total: 1 package (1 upgrade), Size of downloads: 336 KiB