git: 9b54abf7eed8 - stable/15 - pdfork.2: clarify that PD_DAEMON acts on current file

The branch stable/15 has been updated by kib:

URL: https://cgit.FreeBSD.org/src/commit/?id=9b54abf7eed8fd06fe7d8cf27fe64d3d2d17d472

commit 9b54abf7eed8fd06fe7d8cf27fe64d3d2d17d472
Author:     Konstantin Belousov <[email protected]>
AuthorDate: 2026-05-25 17:49:50 +0000
Commit:     Konstantin Belousov <[email protected]>
CommitDate: 2026-08-16 02:41:23 +0000

    pdfork.2: clarify that PD_DAEMON acts on current file
    
    (cherry picked from commit 5a5affd457eb3ab89b57c9c512a8843d9011133f)
---
 lib/libsys/pdfork.2 | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/lib/libsys/pdfork.2 b/lib/libsys/pdfork.2
index bf433509892a..6ebab24ff180 100644
--- a/lib/libsys/pdfork.2
+++ b/lib/libsys/pdfork.2
@@ -87,8 +87,14 @@ This option is not permitted in
 .Xr capsicum 4
 capability mode (see
 .Xr cap_enter 2 ) .
-.El
-.Bl -tag -width ".Dv PD_DAEMON"
+.Pp
+Note: the option changes the behavior of
+.Xr close 2
+for the process descriptor returned by the operation.
+If there is another process descriptor for the same process, created without
+specifying the
+.Dv PD_DAEMON
+flag, closing that descriptor kills the process.
 .It Dv PD_CLOEXEC
 Set close-on-exec on process descriptor.
 .El