Copy stable/11@r303970 to releng/11.0 as part of the 11.0-RELEASE
cycle.

Prune svn:mergeinfo from the new branch, and rename it to RC1.

Update __FreeBSD_version.

Use the quarterly branch for the default FreeBSD.conf pkg(8) repo and
the dvd1.iso packages population.

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

Copy head@r302406 to stable/11 as part of the 11.0-RELEASE cycle.
Prune svn:mergeinfo from the new branch, as nothing has been merged
here.

Additional commits post-branch will follow.

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

libedit: replace 0 with NULL for pointers.

Found with devel/coccinelle.

Reviewed by: Christos Zoulas

Revert r296175
Undo update of libedit 2016-02-27

Something in libedit appears to be causing breakage in lldb38.
The changes are not generally huge but they are suficient to
to justify reverting for now.

Reported by: novel, bapt

MFV r296159
Sync our libedit with NetBSD's libedit 2016-02-27.

Obtained from: NetBSD

Synchronize libedit with NetBSD and activate UTF-8 support [1]

Differences with NetBSD
Reapply our local patches on top of it
Fix Unicode environement detection
Fix reading a line in unicode environment.
It allows /bin/sh to works in UTF-8 envs

Differential Revision: https://reviews.freebsd.org/D1455
Reviewed by: jilles, pfg
Obtained from: NetBSD [1]
MFC after: 1 month
Relnotes: yes

libedit: Reduce surprising behaviour with filename completion some more:
* Quote '*', '?' and '['. While it may be more useful to expand them to
matching pathnames, this at least matches with the completion we do.
* '@' is a regular character for filenames. Some other shells do
@<hostname> completion but we do not.
* Prefix names starting with '-' and '+' with './' so they are not seen as
options.

libedit: Allow simple quoting in filename completion.

The completer recognizes characters escaped with backslashes as being
literal parts of a word, and adds backslashes to avoid almost all
misinterpretation. In particular, filenames containing spaces can be
completed correctly.

For bug compatibility with the NetBSD version, the improved completion
function has a new name, _el_fn_sh_complete, and _el_fn_complete is
unchanged.

Submitted by: Guy Yur

libedit: Fix a bug that could make completion listings incomplete.

The element matches[0] is the common prefix and is not counted in len, so
subtracting 1 is not needed. A counter for the number of matches per line
was incremented twice.

Submitted by: Guy Yur

libedit: Add basic filename completion code from NetBSD.

This will be used to provide filename completion in sh(1).

Changes from the NetBSD code:
* wide character support disabled, as in the rest of libedit
* config.h and related portability stuff reduced/disabled, as in the rest
of libedit

Submitted by: Guy Yur
Obtained from: NetBSD