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proccontrol: make -s require a target
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Authored by brooks on Aug 23 2024, 5:19 PM.
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Details

Summary

Require a command to exec or a pid to target and update usage and the
manpage to make this more clear.

It makes no sense to invoke a procctl(2) command on the current process
only to exit. Users are sometimes confused about how proccontrol works
and think it effects their shell environment when invoked without a
target. Disallowing this nonsensical behavior and clarifiying usage
will hopefully reduce confusion.

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rG FreeBSD src repository
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