git: e3a9e2f029ab - stable/15 - mktemp.1: Document TMPDIR in ENVIRONMENT

The branch stable/15 has been updated by 0mp:

URL: https://cgit.FreeBSD.org/src/commit/?id=e3a9e2f029ab7a0674f44b64e5d246fbc9f932ca

commit e3a9e2f029ab7a0674f44b64e5d246fbc9f932ca
Author:     Mateusz Piotrowski <0mp@FreeBSD.org>
AuthorDate: 2025-09-27 15:21:13 +0000
Commit:     Mateusz Piotrowski <0mp@FreeBSD.org>
CommitDate: 2025-10-01 16:32:17 +0000

    mktemp.1: Document TMPDIR in ENVIRONMENT
    
    While here, use Ev for TMPDIR consistently.
    
    MFC after:      3 days
    Event:          EuroBSDCon 2025
    
    (cherry picked from commit 6b164f18118d0e8dbf9826d7117e0e757f7eb727)
---
 usr.bin/mktemp/mktemp.1 | 12 ++++++++++--
 1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/usr.bin/mktemp/mktemp.1 b/usr.bin/mktemp/mktemp.1
index 063f25f216dc..3b8381c0586c 100644
--- a/usr.bin/mktemp/mktemp.1
+++ b/usr.bin/mktemp/mktemp.1
@@ -27,7 +27,7 @@
 .\"
 .\" From: $OpenBSD: mktemp.1,v 1.8 1998/03/19 06:13:37 millert Exp $
 .\"
-.Dd August 4, 2022
+.Dd September 27, 2025
 .Dt MKTEMP 1
 .Os
 .Sh NAME
@@ -185,6 +185,13 @@ but still introduces a race condition.
 Use of this
 option is not encouraged.
 .El
+.Sh ENVIRONMENT
+.Bl -tag -width TMPDIR
+.It Ev TMPDIR
+The directory in which to store temporary files.
+Refer to
+.Xr environ 7 .
+.El
 .Sh EXIT STATUS
 .Ex -std
 .Sh EXAMPLES
@@ -200,7 +207,8 @@ TMPFILE=`mktemp /tmp/${tempfoo}.XXXXXXXXXX` || exit 1
 echo "program output" >> $TMPFILE
 .Ed
 .Pp
-To allow the use of $TMPDIR:
+To allow the use of
+.Ev TMPDIR :
 .Bd -literal -offset indent
 tempfoo=`basename $0`
 TMPFILE=`mktemp -t ${tempfoo}` || exit 1