[PATCH 06/16] tset(1): Fix style and markup nits.

Style:
* Set metasyntactic variable "terminal-type" in italics.

Markup:
* Favor man(7) font style macros over *roff font selection escape
  sequences, except for man page cross references (because
  man/make_sed.sh recognizes only certain patterns when rewriting such
  cross references), terms in the "NAME" section (because the generated
  edit_man.sh script expects font selection escape sequences when
  scraping terms thence to gather names for man page aliases), in
  (sub)sectioning macro call arguments, and in (non-text-block) tbl(1)
  entries.
---
 man/tset.1 | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/man/tset.1 b/man/tset.1
index 3e7b0fc10..a9f6945c0 100644
--- a/man/tset.1
+++ b/man/tset.1
@@ -78,7 +78,9 @@ .SS "\fItset\fP \(em initialization"
 Next, \fB@TSET@\fP determines the type of terminal that you are using.
 This determination is done as follows, using the first terminal type found.
 .PP
-1. The \fBterminal\fP argument specified on the command line.
+1. The
+.I terminal-type
+argument specified on the command line.
 .PP
 2. The value of the \fITERM\fP environment variable.
 .PP
-- 
2.30.2

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