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

Calculating dependencies ... done!
Dependency resolution took 1.03 s (backtrack: 0/20).

[ebuild  N     ] dev-libs/libptytty-2.0-r1::gentoo  45 KiB
[ebuild  N     ] app-misc/rlwrap-0.48::gentoo  USE="-debug" 346 KiB

Total: 2 packages (2 new), Size of downloads: 390 KiB