Reference NULL using .Dv.

2 files changed, 8 insertions, 5 deletions

diff --git a/share/man/man9/disk.9 b/share/man/man9/disk.9
index 6d5e2e47006..e66c2cae49a 100644
--- a/share/man/man9/disk.9
+++ b/share/man/man9/disk.9
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: disk.9,v 1.15 2000/12/22 00:13:34 avsm Exp $
+.\"	$OpenBSD: disk.9,v 1.16 2001/06/27 08:42:59 aaron Exp $
 .\"	$NetBSD: disk.9,v 1.2 1996/04/08 20:41:25 jtc Exp $
 .\"
 .\" Copyright (c) 1995, 1996 Jason R. Thorpe.
@@ -145,8 +145,9 @@ performed by the disk.
 .It Fn disk_resetstat
 Reset the running byte, transfer, and time totals.
 .It Fn disk_find
-Return a pointer to the disk structure corresponding to the name provided,
-or NULL if the disk does not exist.
+Return a pointer to the disk structure corresponding to the name provided, or
+.Dv NULL
+if the disk does not exist.
 .El
 .Pp
 The functions typically called by device drivers are
diff --git a/share/man/man9/pfind.9 b/share/man/man9/pfind.9
index ad672a9ca82..554a6cbc3c9 100644
--- a/share/man/man9/pfind.9
+++ b/share/man/man9/pfind.9
@@ -1,4 +1,4 @@
-.\"	$OpenBSD: pfind.9,v 1.2 2000/10/12 18:06:01 aaron Exp $
+.\"	$OpenBSD: pfind.9,v 1.3 2001/06/27 08:43:00 aaron Exp $
 .\"
 .\" Copyright (c) 1999 Marc Espie
 .\" All rights reserved.
@@ -51,7 +51,9 @@ and
 functions retrieve process and progress group structures from process and
 process group ids.
 .Pp
-Both functions return NULL if the requested id can't be found.
+Both functions return
+.Dv NULL
+if the requested id can't be found.
 .Sh CODE REFERENCES
 Those functions are implemented in the file
 .Pa sys/kern/kern_proc.c .