Advertise kldxref(8) a little better.

MFC after:	2 weeks

sbin/kldconfig/kldconfig.8

@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd June 15, 2001
+.Dd April 27, 2017
 .Dt KLDCONFIG 8
 .Os
 .Sh NAME
@@ -98,6 +98,7 @@ The default module search path used by the kernel.
 .Sh SEE ALSO
 .Xr kldload 2 ,
 .Xr kldload 8 ,
+.Xr kldxref 8 ,
 .Xr sysctl 8
 .Sh HISTORY
 The

sbin/kldload/kldload.8

@@ -25,7 +25,7 @@
 .\"
 .\" $FreeBSD$
 .\"
-.Dd March 18, 2012
+.Dd April 27, 2017
 .Dt KLDLOAD 8
 .Os
 .Sh NAME
@@ -116,7 +116,8 @@ Modules may also be auto-loaded through their addition to
 .Xr security 7 ,
 .Xr kldconfig 8 ,
 .Xr kldstat 8 ,
-.Xr kldunload 8
+.Xr kldunload 8 ,
+.Xr kldxref 8
 .Sh HISTORY
 The
 .Nm