[groff] 08/10: groff_mm(7): Clarify operation of `INDP` macro.

[G. Branden Robinson]

gbranden pushed a commit to branch master
in repository groff.

commit 7b02f6a6bc7dc8d10dcd553499dce0be3ad1eadf
Author: G. Branden Robinson <g.branden.robinson@gmail.com>
AuthorDate: Thu May 25 06:12:54 2023 -0500

    groff_mm(7): Clarify operation of `INDP` macro.
    
    * contrib/mm/groff_mm.7.man (Macros) <INDP>: Clarify operation.
    
    Fixes <https://savannah.gnu.org/bugs/?64206>.
    
    Also adjust dead-tree pagination.
---
 contrib/mm/ChangeLog      |  6 ++++++
 contrib/mm/groff_mm.7.man | 20 +++++++++++++++-----
 2 files changed, 21 insertions(+), 5 deletions(-)

diff --git a/contrib/mm/ChangeLog b/contrib/mm/ChangeLog
index acb0937e7..4f2211915 100644
--- a/contrib/mm/ChangeLog
+++ b/contrib/mm/ChangeLog
@@ -1,3 +1,9 @@
+2023-05-25  G. Branden Robinson <g.branden.robinson@gmail.com>
+
+       * groff_mm.7.man (Macros) <INDP>: Clarify operation.
+
+       Fixes <https://savannah.gnu.org/bugs/?64206>.
+
 2023-02-17  G. Branden Robinson <g.branden.robinson@gmail.com>
 
        [mm]: Add `--help` option support to mmroff.
diff --git a/contrib/mm/groff_mm.7.man b/contrib/mm/groff_mm.7.man
index a12ab82bd..49ee490bc 100644
--- a/contrib/mm/groff_mm.7.man
+++ b/contrib/mm/groff_mm.7.man
@@ -2174,16 +2174,22 @@ and populated by
 .B IND
 calls.
 .
-The index is preceded by a centered header interpolating the string
+By default,
+.B INDP
+calls
+.B SK
+and writes a centered header interpolating the string
 .BR Index .
 .
-The index is laid out in two columns;
+It then disables filling and calls
+.BR 2C ;
 afterward,
-single-column output is selected again.
+it restores filling and calls
+.BR 1C .
 .
 .
 .IP
-You can define macros to customize the foregoing behavior.
+Define macros to customize this behavior.
 .
 .B INDP
 calls
@@ -2194,7 +2200,7 @@ before the header,
 of writing the header,
 and
 .B TZIND
-after formatting the index to return to the prevailing page layout.
+after formatting the index.
 .
 .
 .TP
@@ -2321,6 +2327,8 @@ they are simpler to use and may be preferred if they suit 
the desired
 purpose.
 .
 .
+.br
+.ne 5v
 .IP
 The nesting level of lists is tracked by
 .I mm;
@@ -2595,6 +2603,8 @@ which are extensible;
 see section \[lq]Internals\[rq] below.
 .
 .
+.br
+.ne 6v
 .IP
 .TS
 tab(@);