===================================================================
RCS file: /cvs/mandoc/makewhatis.8,v
retrieving revision 1.5
retrieving revision 1.6
diff -u -p -r1.5 -r1.6
--- mandoc/makewhatis.8	2017/03/18 19:51:19	1.5
+++ mandoc/makewhatis.8	2017/05/17 22:27:12	1.6
@@ -1,4 +1,4 @@
-.\"	$Id: makewhatis.8,v 1.5 2017/03/18 19:51:19 schwarze Exp $
+.\"	$Id: makewhatis.8,v 1.6 2017/05/17 22:27:12 schwarze Exp $
 .\"
 .\" Copyright (c) 2011, 2012 Kristaps Dzonsons <kristaps@bsd.lv>
 .\" Copyright (c) 2011, 2012, 2014, 2017 Ingo Schwarze <schwarze@openbsd.org>
@@ -15,7 +15,7 @@
 .\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 .\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 .\"
-.Dd $Mdocdate: March 18 2017 $
+.Dd $Mdocdate: May 17 2017 $
 .Dt MAKEWHATIS 8
 .Os
 .Sh NAME
@@ -74,6 +74,8 @@ and
 .Sm on
 in that directory.
 Existing databases are replaced.
+If a directory contains no manual pages, no database is created in that
+directory.
 If
 .Ar dir
 is not provided,
@@ -130,6 +132,7 @@ Remove
 .Ar
 from the database in
 .Ar dir .
+If that causes the database to become empty, also delete the database file.
 .El
 .Pp
 If fatal parse errors are encountered while parsing, the offending file