backlight(8): Add note that with option it print the current brightness.

MFC after: 3 days PR: 253737
arichardson · Mar 3, 2021 · 1df3048 · 1df3048
1 parent 3b005d5
commit 1df3048
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/usr.bin/backlight/backlight.8 b/usr.bin/backlight/backlight.8
@@ -22,7 +22,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd October 27, 2020
+.Dd March 03, 2021
 .Dt BACKLIGHT 8
 .Os
 .Sh NAME
@@ -47,6 +47,9 @@ The
 .Nm
 utility can be used to configure brightness levels for registered backlights.
 .Pp
+If call without any option it will print the current brightness level of the first
+registered backlight.
+.Pp
 The options are as follows:
 .Bl -tag -width "-f device"
 .It Fl f Ar device