Make mandb path configurable. makemandb (and related tools) use

the path from the _mandb variable from man.conf now.

Set _mandb in man.conf to same value as was used before.

Patch by me, committed by wiz. (Diff imported from NetBSD CVS repo.)

apropos.1

@@ -1,4 +1,4 @@
-.\" $NetBSD: apropos.1,v 1.5 2012/04/22 21:27:07 wiz Exp $
+.\" $NetBSD: apropos.1,v 1.6 2012/10/06 15:33:59 wiz Exp $
 .\"
 .\" Copyright (c) 2011 Abhinav Upadhyay <[email protected]>
 .\" All rights reserved.
@@ -29,7 +29,7 @@
 .\" OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd April 21, 2012
+.Dd October 5, 2012
 .Dt APROPOS 1
 .Os
 .Sh NAME
@@ -106,9 +106,11 @@ using it is equivalent to using the
 options directly.
 .El
 .Sh FILES
-.Bl -hang -width -compact
-.It Pa /var/db/man.db
-The Sqlite FTS database which contains an index of the manual pages.
+.Bl -hang -width /etc/man.conf -compact
+.It Pa /etc/man.conf
+The location of the Sqlite FTS database can be configured using the
+.Cd _mandb
+tag.
 .El
 .Sh SEE ALSO
 .Xr man 1 ,