Copy stable/9 to releng/9.3 as part of the 9.3-RELEASE cycle.

Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

MFC r238178, 238624, 238810:

Re-merge a couple of changes from NetBSD libedit.

bin/sh has been taught about el_gets setting the count to -1
on error, so now we can partially revert r238173 to reduce
differences with NetBSD's implementation.

Also fix some warnings to be more in sync with NetBSD.

Obtained from: NetBSD

Copy head to stable/9 as part of 9.0-RELEASE release cycle.

Approved by: re (implicit)

Sync libedit with recent NetBSD developments. Including improvements to the
vi-mode, removal of clause 3, cleanups and the export of the tokenization
functions.

Not included: config.h, filecomplete.{c,h}

Revert the replacement of realloc() with reallocf() (el.h:1.2, map.c:1.5 and
tokenizer.c:1.3). Contrary to the commit log there were no memory leaks,
but the change introduced a bug because the free'd pointer was not zeroed
and calling the appropriate _end() function would call free() a second time.

Fix ID's after a total boch CVS merge due to multiple people making
commits to these files.
As I sing to CVS:
Have I told you lately that I hate your guts? Have I told you
all SCM's are above you? You fill my heart with pain, take away
all my merging joy, grow my troubles that's what you do."

+ Sync with NetBSD, bringing in feature enhancements.
+ Convert to ANSI-C function definitions
+ style(9)

Submitted by: kris

Add __FBSDID()s to libedit

Replace memory leaking instances of realloc with non-leaking reallocf.
In some cases replace if (a == null) a = malloc(x); else a =
realloc(a, x); with simple reallocf(a, x). Per ANSI-C, this is
guaranteed to be the same thing.

I've been running these on my system here w/o ill effects for some
time. However, the CTM-express is at part 6 of 34 for the CAM
changes, so I've not been able to do a build world with the CAM in the
tree with these changes. Shouldn't impact anything, but...

Remove trailing whitespace.

This commit was generated by cvs2svn to compensate for changes in r1573,
which included commits to RCS files with non-trunk default branches.

BSD 4.4 Lite Lib Sources