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

Calculating dependencies ... done!
Dependency resolution took 1.00 s (backtrack: 0/20).

[ebuild  N     ] x11-libs/libdockapp-0.7.3:0/3::gentoo  USE="X -static-libs" 379 KiB
[ebuild  N     ] sys-apps/lm-sensors-3.6.2:0/5.0.0::gentoo  USE="-contrib (-selinux) -sensord -static-libs -test" 286 KiB
[ebuild  N     ] x11-plugins/wmgtemp-1.2::gentoo  95 KiB

Total: 3 packages (3 new), Size of downloads: 759 KiB