Use .Vt instead of .Tn for mode_t and dev_t.
While here, also use .Fa rather than .Va for st_rdev (as usual
for struct fields), and correctly mark up st_mode and S_IFMT.
-.\" $OpenBSD: dev_mkdb.8,v 1.9 2022/08/04 06:20:24 jsg Exp $
+.\" $OpenBSD: dev_mkdb.8,v 1.10 2022/08/04 11:50:46 schwarze Exp $
.\"
.\" Copyright (c) 1990, 1993
.\" The Regents of the University of California. All rights reserved.
files in the
.Dq Pa /dev
directory, using the file type and the
-.Va st_rdev
+.Fa st_rdev
field as the key.
.Pp
Keys are a structure containing a
-.Tn mode_t
+.Vt mode_t
followed by a
-.Tn dev_t ,
+.Vt dev_t ,
with any padding zeroed out.
The former is the type of the file
-.Pq st_mode & S_IFMT ,
+.Pq Fa st_mode No & Dv S_IFMT ,
the latter is the
-.Va st_rdev
+.Fa st_rdev
field.
.Sh FILES
.Bl -tag -width /var/run/dev.db -compact