git: aacf2678b67b - stable/13 - ports.7: Fix example of passing variables on the command line

The branch stable/13 has been updated by 0mp:

URL: https://cgit.FreeBSD.org/src/commit/?id=aacf2678b67b9c57282fcf8690b0c91791b2d2a1

commit aacf2678b67b9c57282fcf8690b0c91791b2d2a1
Author:     Mateusz Piotrowski <0mp@FreeBSD.org>
AuthorDate: 2025-09-10 08:52:15 +0000
Commit:     Mateusz Piotrowski <0mp@FreeBSD.org>
CommitDate: 2025-09-13 11:31:38 +0000

    ports.7: Fix example of passing variables on the command line
    
    make(1)'s -D flag does not allow for setting the value of the variable.
    It just defines the variable and sets its value to 1. In fact, make(1)
    treats "=" as just another character in the variable name:
    
    ```
    $ make -DA=2 -V A  # Output is just an empty line.
    
    $ make -DA=2 -V A=2  # Variable "A=2" is defined and set to "1".
    1
    ```
    
    Fixes:  d25f7d324a9d ports.7: Document DEBUG_FLAGS and the process of debugging ports
    MFC after:      3 days
    
    (cherry picked from commit 9365a328596c9f156deaa15fa018b76b3a6e6b18)
---
 share/man/man7/ports.7 | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/share/man/man7/ports.7 b/share/man/man7/ports.7
index cc53b4c068c5..05ed6d29603b 100644
--- a/share/man/man7/ports.7
+++ b/share/man/man7/ports.7
@@ -25,7 +25,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd March 21, 2025
+.Dd September 10, 2025
 .Dt PORTS 7
 .Os
 .Sh NAME
@@ -667,7 +667,7 @@ WITH_DEBUG_PORTS=	mail/dovecot security/krb5
 .Pp
 It is also possible to use the debug variables on the command line:
 .Bd -literal -offset 2n
-.Li # Ic make -DWITH_DEBUG DEBUG_FLAGS="-g -O0" build
+.Li # Ic make WITH_DEBUG DEBUG_FLAGS="-g -O0" build
 .Ed
 .Pp
 See the