*-sushi-* packages.
Suggested by Allen Barret in PR misc/16900:
>$ grep base-sysutil distrib/sets/lists/base/mi | grep sushi | wc -l
> 288
>$ grep base-sysutil distrib/sets/lists/base/mi | grep -v sushi | wc -l
> 136
>
>In a future where syspkgs are useful, it seems likely that some
>people will want to avoid installing sushi, while others will want to
>be able to upgrade sushi without upgrading the entire system. Several
>small subsystems, including cron and lpr, have their own syspkg sets,
>and it seems reasonable to do the same for the sushi subsystem.
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