Index: share/man/man9/gone_in.9
===================================================================
--- share/man/man9/gone_in.9
+++ share/man/man9/gone_in.9
@@ -23,7 +23,7 @@
 .\" (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 June 24, 2025
+.Dd October 27, 2025
 .Dt GONE_IN 9
 .Os
 .Sh NAME
@@ -44,9 +44,6 @@
 removal in a future
 .Fx
 release.
-The notice is sent to the kernel
-.Xr dmesg 8
-log and will appear on the console.
 The
 .Fa major
 argument specifies the major version of the
@@ -59,19 +56,30 @@
 .Nm gone_in_dev
 will prepend driver name before the notice.
 .Pp
+The
+.Fn gone_in
+and
+.Fn gone_in_dev
+functions take a
+.Xr printf 9
+style format string and arguments.
+The formatted notice is sent to the kernel
+.Xr dmesg 8
+log and will appear on the console.
+.Pp
 In releases before
 .Fa major
-the provided notice will be appended with
+these functions append a message
 .Do
 To be removed in FreeBSD
-.Fa major Ns
+.Fa major
 .Dc .
 .Sh EXAMPLES
 .Bd -literal -offset indent
 void
 example_api(foo_t *args)
 {
-	gone_in(16, "Warning! %s[%u] uses obsolete API. ",
+	gone_in(16, "Warning! %s[%u] uses obsolete API.\\n",
 	    curthread->td_proc->p_comm, curthread->td_proc->p_pid);
 
 	/* API implementation omitted. */
@@ -82,7 +90,7 @@
 {
 	/* Attach code omitted. */
 
-        gone_in_dev(sc->dev, 16, "driver is deprecated");
+        gone_in_dev(sc->dev, 16, "driver is deprecated\\n");
 }
 .Ed
 .Sh HISTORY