Briefly document output of the modstat utility.

(And update document date.)

usr.bin/modstat/modstat.8

@@ -1,4 +1,4 @@
-.\" $NetBSD: modstat.8,v 1.12 2005/09/09 22:47:26 rpaulo Exp $
+.\" $NetBSD: modstat.8,v 1.13 2006/03/23 23:59:38 reed Exp $
 .\"
 .\" Copyright (c) 1993 Christopher G. Demetriou
 .\" All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\" <<Id: LICENSE,v 1.2 2000/06/14 15:57:33 cgd Exp>>
 .\"
-.Dd June 7, 1993
+.Dd March 23, 2006
 .Dt MODSTAT 8
 .Os
 .Sh NAME
@@ -55,6 +55,36 @@ Display the status of only the module with this ID.
 .It Fl n Ar name
 Display the status of only the module with this name.
 .El
+.Pp
+In addition to listing the currently loaded modules' name,
+the information reported by
+.Nm
+includes:
+.Pp
+.Bl -tag -column Loadaddr
+.It Li Type
+Type of module, such as
+"SYSCALL", "VFS", "DEV",
+.\" "STRMOD",
+"EXEC", "COMPAT", "MISC" or "(UNKNOWN)".
+See
+.Xr lkm 4
+for details.
+.It Li Id
+Module identification number.
+.It Li Offset
+Target table offset.
+.It Li Loadaddr
+Address the module loaded at.
+.It Li Size
+Size in kilobytes (in hex).
+.It Li Info
+Kernel address of private area.
+.It Li Rev
+Version of the module interface.
+(Not the version of the module itself.)
+.El
+.Pp
 .Sh EXIT STATUS
 The
 .Nm