Remove unused stuff, and limit the scope of some of the used ones.
(from des@freebsd)

improvements in malloc/free handling.

Add casts to appease conversions between wchar_t and wint_t

Fix numeric variable handling in settc (lyzliyuzhi at 163 dot com)

use strlcpy() instead of strncpy() for gcc happiness

PR/54654: Soren Tempel: Make sure el_cursor.v < el_terminal.t_size.v when
moving around.

Fix type and remove cast (Yuichiro NAITO/FreeBSD).

PR/54399: Sören Tempel: Uninitialized memory access in libedit history.
Initialize the buffer using calloc. While here change all malloc(a * sizeof(b))
to calloc(a, sizeof(b)). XXX: should fix reallo

PR/54399: Sören Tempel: Uninitialized memory access in libedit history.
Initialize the buffer using calloc. While here change all malloc(a * sizeof(b))
to calloc(a, sizeof(b)). XXX: should fix realloc similarly.

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Add a comment explaining why we don't use DO here. Correct the attribution
on the previous patch: The patch was from Jordan Lewis and the report from
Raphael Poss.

PR/54329: Raphael Ross: According to https://www.gnu.org/software/termutils/\
manual/termcap-1.3/html_chapter/termcap_4.html#SEC23 the cursor move multiple
escapes have undefined results when moving

PR/54329: Raphael Ross: According to https://www.gnu.org/software/termutils/\
manual/termcap-1.3/html_chapter/termcap_4.html#SEC23 the cursor move multiple
escapes have undefined results when moving out of the screen. Stop using DO
to move down multiple lines and use a loop of newlines instead.

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PR/52359: Benjamin Lorenz: When resizing because of a signal save and restore
the cursor position, since it does not change.

PR/53983: Jonathan Perkins: Fix types for readline compatibility

PR/53682: Jordan Lewis: use newlines instead of padded spaces when restoring
multi-line histories.

- handle literal escape sequence printing.
- factor out common code in allocation and freeing of the display.

s/protected/libedit_private/g

eliminate static buffer with custom resizing code.

From Ingo Schwarze:
* Replace fcns.c by a shorter and simpler func.h
and include it only in the one file needing it, map.c.
* Combine help.h and help.c into a simplified help.h
and include it

From Ingo Schwarze:
* Replace fcns.c by a shorter and simpler func.h
and include it only in the one file needing it, map.c.
* Combine help.h and help.c into a simplified help.h
and include it only in the one file needing it, map.c.
* Check the very simple, static files editline.c, historyn.c, and
tokenizern.c into CVS rather than needlessly generating them.
* So we no longer autogenerate any C files. :-)
* Shorten and simplify makelist by deleting the options -n, -e, -bc,
and -m; the latter was unused and useless in the first place.
* Move the declaration of el_func_t from fcns.h to the header
actually needing it, map.h. Since that header is already
included by el.h for unrelated reasons, that makes el_func_t
just as globally available as before.
* No longer include the simplified fcns.h into el.h,
include it directly into the *.c files needing it.

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Get rid of private/public; keep protected (Ingo Schwarze)

Char -> wchar_t from Ingo Schwarze.

more macro WIDECHAR undoing from Ingo Schwarze.

More WIDECHAR elimination (Ingo Schwarze)

Start removing the WIDECHAR ifdefs; building without it has stopped working
anyway. (Ingo Schwarze)

put back NUL check (Ingo Schwarze)

PR/50880: David Binderman: Remove redundant code.
While here, fix all debugging formats.

whitespace and header sorting changes (Ingo Schwarze). No functional changes.