Add FILES section.

From jmc@OpenBSD.

lib/libedit/editrc.5

@@ -1,4 +1,4 @@
-.\"	$NetBSD: editrc.5,v 1.26 2012/06/02 14:19:20 njoly Exp $
+.\"	$NetBSD: editrc.5,v 1.27 2013/01/10 16:03:42 wiz Exp $
 .\"
 .\" Copyright (c) 1997-2000 The NetBSD Foundation, Inc.
 .\" All rights reserved.
@@ -26,7 +26,7 @@
 .\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 .\" POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd October 18, 2003
+.Dd January 10, 2013
 .Dt EDITRC 5
 .Os
 .Sh NAME
@@ -478,6 +478,13 @@ Move down one line.
 Editline extended command.
 .El
 .\" End of section automatically generated with makelist
+.Sh FILES
+.Bl -tag -width "~/.editrcXXX"
+.It Pa ~/.editrc
+User configuration file for the
+.Xr editline 3
+library.
+.El
 .Sh SEE ALSO
 .Xr editline 3 ,
 .Xr regex 3 ,