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From: Jaakko Heinonen <jh@FreeBSD.org>
Date: Sun, 24 Oct 2010 16:10:33 +0000 (UTC)
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Subject: svn commit: r214278 - head/share/man/man9
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Author: jh
Date: Sun Oct 24 16:10:32 2010
New Revision: 214278
URL: http://svn.freebsd.org/changeset/base/214278

Log:
  Use .Dv with NULL.

Modified:
  head/share/man/man9/make_dev.9

Modified: head/share/man/man9/make_dev.9
==============================================================================
--- head/share/man/man9/make_dev.9	Sun Oct 24 15:56:21 2010	(r214277)
+++ head/share/man/man9/make_dev.9	Sun Oct 24 16:10:32 2010	(r214278)
@@ -271,7 +271,9 @@ After
 .Fn destroy_dev
 is finished, and if the supplied
 .Fa cb
-is not NULL, the callback
+is not
+.Dv NULL ,
+the callback
 .Fa cb
 is called, with argument
 .Fa arg .