portage-ng --merge
>>> Emerging : portage://sys-apps/hwdata-0.399:run?{[]}
These are the packages that would be merged, in order:
Calculating dependencies... done!
└─step 1─┤ download portage://sys-apps/hwdata-0.399
│ └─ file ─┤ 2.41 Mb hwdata-0.399.tar.gz
└─step 2─┤ downgrade portage://sys-apps/hwdata-0.399 (replaces pkg://sys-apps/hwdata-0.400)
└─step 3─┤ run portage://sys-apps/hwdata-0.399
Total: 3 actions (1 download, 1 downgrade, 1 run), grouped into 3 steps.
2.41 Mb to be downloaded.