ubtbcmfw.4: Canonicalize SYNOPSIS + tag SPDX

Event:		EuroBSDcon 2026
MFC after:	3 days

share/man/man4/ubtbcmfw.4

@@ -1,3 +1,6 @@
+.\"
+.\" SPDX-License-Identifier: BSD-2-Clause
+.\"
 .\" Copyright (c) 2003 Maksim Yevmenkin <[email protected]>
 .\" All rights reserved.
 .\"
@@ -31,19 +34,11 @@
 .Nm ubtbcmfw
 .Nd Firmware driver for Broadcom BCM2033 chip based Bluetooth USB devices
 .Sh SYNOPSIS
-To compile this driver into the kernel,
-place the following line in your
-kernel configuration file:
-.Bd -ragged -offset indent
-.Cd "device ubtbcmfw"
-.Ed
+.Cd device ubtbcmfw
 .Pp
-Alternatively, to load the driver as a
-module at boot time, place the following line in
+In
 .Xr loader.conf 5 :
-.Bd -literal -offset indent
-ubtbcmfw_load="YES"
-.Ed
+.Cd ubtbcmfw_load="YES"
 .Sh DESCRIPTION
 The
 .Nm