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

Calculating dependencies ... done!
Dependency resolution took 1.59 s (backtrack: 0/20).

[ebuild     UD ] media-libs/fontconfig-2.16.2-r1:1.0::gentoo [2.17.1:1.0::gentoo] USE="nls -doc -test" 1269 KiB

Total: 1 package (1 downgrade), Size of downloads: 1269 KiB