git: 431545476078 - stable/15 - cdefs(9): document __nonstring

The branch stable/15 has been updated by mhorne:

URL: https://cgit.FreeBSD.org/src/commit/?id=4315454760788542e9f5b0f6a255d2a9a62acf9c

commit 4315454760788542e9f5b0f6a255d2a9a62acf9c
Author:     Mitchell Horne <mhorne@FreeBSD.org>
AuthorDate: 2026-02-05 18:52:36 +0000
Commit:     Mitchell Horne <mhorne@FreeBSD.org>
CommitDate: 2026-09-03 16:27:46 +0000

    cdefs(9): document __nonstring
    
    Reviewed by:    emaste
    Discussed with: imp
    Fixes:  802c6d5d61d1 ("cdefs.h: Introduce __nonstring attribute")
    MFC after:      3 days
    Sponsored by:   The FreeBSD Foundation
    Differential Revision:  https://reviews.freebsd.org/D58804
    
    (cherry picked from commit 2ea905c875b6c89117023e240c3158f2da79bc52)
---
 share/man/man9/cdefs.9 | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/share/man/man9/cdefs.9 b/share/man/man9/cdefs.9
index 2bda50c3f875..7f7512ff9019 100644
--- a/share/man/man9/cdefs.9
+++ b/share/man/man9/cdefs.9
@@ -3,7 +3,7 @@
 .\"
 .\" SPDX-License-Identifier: BSD-2-Clause
 .\"
-.Dd May 6, 2026
+.Dd August 13, 2026
 .Dt CDEFS 9
 .Os
 .Sh NAME
@@ -199,6 +199,9 @@ except
 .Fa fmtarg
 may be
 .Dv NULL.
+.It Sy __nonstring Ta Specify that an array of
+.Vt char
+does not require a null terminator.
 .It Sy __strong_reference(sym,aliassym) Ta
 .It Sy __weak_reference(sym,alias) Ta
 .It Sy __warn_references(sym,msg) Ta