From 960719762f0a1f6689ec58bc6d8ce21c4daa9096 Mon Sep 17 00:00:00 2001
From: Alexander Ziaee <ziaee@FreeBSD.org>
Date: Tue, 17 Feb 2026 12:22:26 -0500
Subject: [PATCH] trimdomain.3: Explain DISPLAY a bit more

MFC after:		3 days
Reported by:		jrtc27
Reviewed by:		des
Differential Revision:	https://reviews.freebsd.org/D54629
---
 lib/libutil/trimdomain.3 | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/lib/libutil/trimdomain.3 b/lib/libutil/trimdomain.3
index 0e65a864936..114d8d13986 100644
--- a/lib/libutil/trimdomain.3
+++ b/lib/libutil/trimdomain.3
@@ -22,7 +22,7 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd April 7, 1999
+.Dd February 17, 2025
 .Dt TRIMDOMAIN 3
 .Os
 .Sh NAME
@@ -60,20 +60,18 @@ name does not exceed
 .Pp
 If the passed
 .Ar fullname
-is actually a
-.Dv DISPLAY
+is actually an X11
+.Ev DISPLAY
 specification of the form
 .Sm off
-.Ar host . domain : nn Oo .
-.Ar nn
-.Oc
+.Ar host . Ar domain : Ar display Op . screen ,
 .Sm on
 and the domain name is the same as the local domain name,
 .Fn trimdomain
 will remove the embedded domain name, copying the screen and display
 numbers to the end of the base host name and resulting in
 .Sm off
-.Ar host : nn Op . Ar nn .
+.Ar host : display Op . Ar screen .
 .Sm on
 .Sh RETURN VALUES
 The