Copy head (r256279) to stable/10 as part of the 10.0-RELEASE cycle.

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

Provide an option to users to shoot themselves in the foot.

Reviewed by: bapt
Approved by: cperciva
MFC after: 1 month

Warn users when using pkg tools if it looks like they
be be pkgng users.

Reviewed by: bapt (earlier version)
Reviewed by: kwm
Approved by: cperciva
MFC after: 3 days

General mdoc(7) and typo fixes.

PR: 167696
Submitted by: Nobuyuki Koganemaru (kogane!jp.freebsd.org)
MFC after: 3 days

Remove trailing whitespace per mdoc lint warning

Disussed with: gavin
No objection from: doc
Approved by: joel
MFC after: 3 days

Reencode files to UTF-8. Drop CP1252 em-dash.

In usr.sbin/pkg_install/updating/main.c, use the size of the destination
buffer as size argument to strlcpy(), not the length of the source.

MFC after: 1 week

Backout libinstall.a -> libpkg commit.

Discussed with: erwin, brooks, bapt

mdoc: use mdoc spelling of Umlauts

mdoc: move remaining sections into consistent order

This pertains mostly to FILES, HISTORY, EXIT STATUS and AUTHORS sections.

Found by: mdocml lint run
Reviewed by: ru

- Take libinstall.a out of pkg_install and make it a proper shared library.
- Rework the wrapper support to check libpkg version as well as pkg_install
version.
- Add libfetch to _prebuild_libs.
- There are no new features introduced.

Notes: the API is not stable, so basically, do not use libpkg in your
projects for now. Also there's no manpage for libpkg yet, because the API
will change drastically. I repeat, do not use libpkg for now.

Fix several typos in macros or macro misusage.

Found by: make manlint
Reviewed by: ru
Approved by: philip (mentor)

- Add support for UPDATING remote fetching.
- Reorganize EXAMPLES section in pkg_updating(1).
- Style fixes.
- Bump PKG_INSTALL_VERSION to 20100122.

Submitted by: beat
MFC after: 1 week

The last big commit: let usr.sbin/ use WARNS=6 by default.

- add: Keep dependent packages too if -K is specified.
- updating: terminating '\n' is not part of the package origin.
- bump PKG_INSTALL_VERSION to 20080612.

PR: bin/119368 [1], bin/124459 [2]
Submitted by: gcooper [1], Beat Gatzi <beat@chruetertee.ch> [2]
MFC after: 3 days

- Add long options to pkg_install.
- Remove check for '-?' as it's not listed in authorized options.
- Bump PKG_INSTALL_VERSION to 20080530.

Backout previous commit, since it's done without maintainers
approval. These changes were approved by adding it as port to
ports/ tree, but not for src/. I talked to PR submitter and miwi@
some days ago and explained the reasons for it, the both were agree
to add it to ports/ only.

Add the 'pkg_search' script.
This makes it easier to figure what packages you want to install.

Submitted by: Matthias Schmidt <schmidtm @ mathematik . uni-marburg . de>

Some code cleanups, including removing of stale getopt argument and
hardcoded +CONTENTS defines.

PR: bin/117855
Submitted by: Beat Gaetzi <beat@chruetertee.ch>
MFC after: 14 days

Introduce pkg_updating(1) which scans for installed ports and shows
all ports/UPDATING entries that affect one of the installed ports,
and are relevant on the given machine.

PR: bin/117564
Submitted by: Beat Gaetzi <beat@chruetertee.ch>
MFC after: 14 days