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

Calculating dependencies ... done!
Dependency resolution took 1.09 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/oniguruma-6.9.10:0/5::gentoo  USE="-crnl-as-line-terminator -static-libs" 957 KiB
[ebuild  N     ] net-libs/llhttp-9.4.3:0/9.4::gentoo  40 KiB
[ebuild  N     ] dev-libs/libgit2-1.9.7:0/1.9::gentoo  USE="ssh -examples -gssapi -test -trace" 7588 KiB
[ebuild  N     ] sys-apps/bat-0.24.0-r3::gentoo  USE="-debug" 44867 KiB

Total: 4 packages (4 new), Size of downloads: 53449 KiB