git: 88a2d48d39d9 - main - pkill: better document ancestor-hiding

The branch main has been updated by kevans:

URL: https://cgit.FreeBSD.org/src/commit/?id=88a2d48d39d9845e36c8e95a9204001b11e7257e

commit 88a2d48d39d9845e36c8e95a9204001b11e7257e
Author:     Kyle Evans <kevans@FreeBSD.org>
AuthorDate: 2025-06-24 14:49:31 +0000
Commit:     Kyle Evans <kevans@FreeBSD.org>
CommitDate: 2025-06-24 14:49:31 +0000

    pkill: better document ancestor-hiding
    
    More prominently note that we'll hide ancestors in the first two
    paragraphs that provide an overview of pkill/pgrep.  It also seems
    worth noting in the description of -a that we won't ever unhide the
    pgrep/pkill command itself, as mypid is skipped in all process iteration
    by way of PSKIP().
    
    Reviewed by:    allanjude, des
    Sponsored by:   Klara, Inc.
    Differential Revision:  https://reviews.freebsd.org/D51009
---
 bin/pkill/pkill.1 | 21 ++++++++++++++++++---
 1 file changed, 18 insertions(+), 3 deletions(-)

diff --git a/bin/pkill/pkill.1 b/bin/pkill/pkill.1
index f06b448b5df8..40abbba96362 100644
--- a/bin/pkill/pkill.1
+++ b/bin/pkill/pkill.1
@@ -27,7 +27,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd October 5, 2020
+.Dd June 24, 2025
 .Dt PKILL 1
 .Os
 .Sh NAME
@@ -71,12 +71,17 @@ The
 .Nm pgrep
 command searches the process table on the running system and prints the
 process IDs of all processes that match the criteria given on the command
-line.
+line, excluding itself and all direct ancestors unless the
+.Fl a
+option is specified.
 .Pp
 The
 .Nm pkill
 command searches the process table on the running system and signals all
-processes that match the criteria given on the command line.
+processes that match the criteria given on the command line, excluding itself
+and all direct ancestors unless the
+.Fl a
+option is specified.
 .Pp
 The following options are available:
 .Bl -tag -width ".Fl F Ar pidfile"
@@ -130,6 +135,16 @@ or
 process and all of its ancestors are excluded (unless
 .Fl v
 is used).
+Note that the
+.Fl a
+option will not
+.Dq unhide
+the
+.Nm pgrep
+or
+.Nm pkill
+process itself, even with
+.Fl v .
 .It Fl c Ar class
 Restrict matches to processes running with specified login class
 .Ar class .