kill.1: mention special meaning of PGID as a PID

PR:	 284158
MFC after:	3 days
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artembunichev 2025-01-19 15:58:55 +03:00 committed by Konstantin Belousov
parent f5cf173de0
commit d6c2d4fe97

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@ -85,6 +85,9 @@ group ID of the sender, and for which the process has permission.
.It -1
If superuser, broadcast the signal to all processes; otherwise broadcast
to all processes belonging to the user.
.It - Ns Ar PGID
The signal is sent to all processes that belong to the specified
process group ID (PGID).
.El
.Pp
Some of the more commonly used signals: