From a6fc5f3467670ef447f857ae2245112a40a052ae Mon Sep 17 00:00:00 2001
From: Nate Bargmann <n0nb@n0nb.us>
Date: Sun, 20 Aug 2023 12:09:39 -0500
Subject: [PATCH 1/4] Replace incorrect text with ix macro

Extra text was found in the output that matched other uses of the 'ix'
macro.  Replace '129' with '.ix' to fix.

The 'mmt' command is now present in the index.
---
 src/ch06.t | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ch06.t b/src/ch06.t
index 1e2c691..2abc453 100644
--- a/src/ch06.t
+++ b/src/ch06.t
@@ -206,7 +206,7 @@ instead of
 .CW nroff ,
 use the
 .CW mmt
-129	[mmt] command %key mmt command
+.ix [mmt] command %key mmt command
 command (another shell script) or invoke
 .CW troff
 directly, using the

From 4713bfe5b7aa9f700c4440652b5f3b3040fdc16b Mon Sep 17 00:00:00 2001
From: Nate Bargmann <n0nb@n0nb.us>
Date: Tue, 22 Aug 2023 05:59:29 -0500
Subject: [PATCH 2/4] Remove extraneous " lines" from Hb reference

The value of register Hb controls the heading levels that will have a
line break after the heading.  The addition of " lines" implies that
the value controls the number of blank lines which is not the case per
original AT&T MM documentation:

https://github.com/n-t-roff/DWB3.3/blob/562bb8615116f46077ca03e8561323cc7a89673e/doc/mm/mm.04#L257

Unfortunately, this erroneous text also appears in the original UTP and
confuses the intended use of the register.
---
 src/ch06.t | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ch06.t b/src/ch06.t
index 2abc453..412cfb7 100644
--- a/src/ch06.t
+++ b/src/ch06.t
@@ -4275,7 +4275,7 @@ Fs###Vertical spacing between footnotes.
 Hb###T{
 Level of heading for which break occurs before output
 of body text.
-Default is 2 lines.
+Default is 2.
 T}
 .sp 4p
 Hc###T{

From 8118774c772ff4f8e5dc4a740c5a590119209519 Mon Sep 17 00:00:00 2001
From: Nate Bargmann <n0nb@n0nb.us>
Date: Wed, 23 Aug 2023 09:32:34 -0500
Subject: [PATCH 3/4] Remove extraneous " (default)" from Hi reference

The sentence preceeding the description of legal values correctly notes
'1' as the default.  Showing '0' and '1' as 'default' is confusing.  The
available AT&T MM manual confirms the default is '1':

https://github.com/n-t-roff/DWB3.3/blob/562bb8615116f46077ca03e8561323cc7a89673e/doc/mm/mm.04#L282

This extreneous string appears in the original UTP.
---
 src/ch06.t | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ch06.t b/src/ch06.t
index 412cfb7..06c5ed4 100644
--- a/src/ch06.t
+++ b/src/ch06.t
@@ -4287,7 +4287,7 @@ Hi###T{
 Indent type after heading.
 Default is 1 (paragraph indent).
 Legal values are:
-0=left justified (default);
+0=left justified;
 1=indented;
 2=indented except after
 .CW \&.H ,

From 463225f1ad95181eab263e060bd35a0f7c0caa89 Mon Sep 17 00:00:00 2001
From: Nate Bargmann <n0nb@n0nb.us>
Date: Wed, 23 Aug 2023 09:45:09 -0500
Subject: [PATCH 4/4] Align the HF example to explantory text

The HF example only sets bold for the first four headings while the
explanatory text below states that the first five headings will be in
bold type.  Correct the example to match the text.

This inconsistency is present in the original UTP.
---
 src/ch06.t | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ch06.t b/src/ch06.t
index 06c5ed4..b801f39 100644
--- a/src/ch06.t
+++ b/src/ch06.t
@@ -4423,7 +4423,7 @@ start of your document:
 \&.nr Hs 3
 \&.nr Hb 4
 \&.nr Hi 2
-\&.ds HF 3 3 3 3 2 2 2
+\&.ds HF 3 3 3 3 3 2 2
 \&.ds HP 16 14 12 10 10 10 10
 .Pe
 .LP