man bluetooth/fwdownloaders: terse descriptions

+ descriptions no longer wrap on a standard console, no keywords removed
+ more consistent language with other firmware tooling manuals

MFC after: 3 days
Reviewed by: imp (bumped date for Nd changes)
Pull Request: https://github.com/freebsd/freebsd-src/pull/1266

(cherry picked from commit 2c901189bb)

usr.sbin/bluetooth/ath3kfw/ath3kfw.8

@@ -26,12 +26,12 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd June 4, 2016
+.Dd May 31, 2024
 .Dt ATH3KFW 8
 .Os
 .Sh NAME
 .Nm ath3kfw
-.Nd firmware download utility for Atheros AR3011/AR3012 chip based Bluetooth USB devices
+.Nd download firmware for Atheros AR3011/AR3012 Bluetooth USB devices
 .Sh SYNOPSIS
 .Nm
 .Op Fl DI

usr.sbin/bluetooth/bcmfw/bcmfw.8

@@ -25,14 +25,12 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\" $Id: bcmfw.8,v 1.7 2003/05/21 00:33:40 max Exp $
-.\"
-.Dd March 31, 2003
+.Dd May 31, 2024
 .Dt BCMFW 8
 .Os
 .Sh NAME
 .Nm bcmfw
-.Nd firmware download utility for Broadcom BCM2033 chip based Bluetooth USB devices
+.Nd download firmware for Broadcom BCM2033 Bluetooth USB devices
 .Sh SYNOPSIS
 .Nm
 .Op Fl h

usr.sbin/bluetooth/iwmbtfw/iwmbtfw.8

@@ -26,13 +26,12 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd May 3, 2021
+.Dd May 31, 2024
 .Dt IWMBTFW 8
 .Os
 .Sh NAME
 .Nm iwmbtfw
-.Nd firmware download utility for Intel Wireless 7260/8260/8265 chip based Bluetooth
-USB devices
+.Nd download firmware for Intel Wireless AC Bluetooth USB devices
 .Sh SYNOPSIS
 .Nm
 .Op Fl DI