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

Calculating dependencies ... done!
Dependency resolution took 0.97 s (backtrack: 0/20).

[ebuild  N     ] app-text/cmark-gfm-0.29.0.13-r2:0/0.29.0.gfm.13::gentoo  USE="-test" 294 KiB

Total: 1 package (1 new), Size of downloads: 294 KiB