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

Calculating dependencies ... done!
Dependency resolution took 1.53 s (backtrack: 0/20).

[ebuild     U  ] app-arch/tar-1.35-r1::gentoo [1.35::gentoo] USE="acl nls xattr -minimal (-selinux) -test% -verify-sig" 2263 KiB

Total: 1 package (1 upgrade), Size of downloads: 2263 KiB