In the changelog carpaski wrote: emergehelp.py: Updates for --debug, --digest, and --skipfirst. but --digest is not present! also, emergehelp.py lacks --columns, --nospinner, --quiet (-q), --version (-V) Moreover, emerge also accepts the flag "--selective" (undocumented) that seems to have the same effect of --noreplace Bye.
Neither --digest not --selective will not be documented. They are not for public use. The others are updated. Thanks.