[PATCH 05/51] man/legacy_coding.3x: Improve organization.

[G. Branden Robinson]

* Add "EXTENSIONS" section.
* Drop from "PORTABILITY" section unnecessary statement about AT&T/BSD
  Unix lacking this extension; that is always implied when ncurses says
  "extension" (see ncurses(3x)).  (Also, Seventh Edition Unix a.k.a.
  "Version 7" shipped no curses at all; see
  <https://minnie.tuhs.org/cgi-bin/utree.pl?file=V7>).
* Add "HISTORY" section and migrate feature motivation thence from
  "AUTHORS" section.
---
 man/legacy_coding.3x | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/man/legacy_coding.3x b/man/legacy_coding.3x
index ccfdd5564..c095a8e86 100644
--- a/man/legacy_coding.3x
+++ b/man/legacy_coding.3x
@@ -86,18 +86,23 @@ .SH RETURN VALUE
 .BR 1 ,
 or
 .BR 2 .
-.SH PORTABILITY
+.SH EXTENSIONS
 .B \%use_legacy_coding
-is specific to
-.IR \%ncurses .
-It was not supported on Version 7, BSD or System V implementations.
+is an
+.I \%ncurses
+extension.
+.SH PORTABILITY
 Applications employing
 .I \%ncurses
 extensions should condition their use on the visibility of the
 .B \%NCURSES_VERSION
 preprocessor macro.
+.SH HISTORY
+.I \%ncurses
+5.6 (2006) introduced
+.I \%use_legacy_coding
+to support \fI\%lynx\fP(1)'s font-switching feature.
 .SH AUTHORS
 Thomas Dickey
-(to support \fI\%lynx\fP(1)'s font-switching feature).
 .SH SEE ALSO
 \fB\%unctrl\fP(3X)
-- 
2.30.2

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