- Copy stable/10@296371 to releng/10.3 in preparation for 10.3-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.3.
- Update default pkg(8) configuration to use the quarterly branch.

Approved by: re (implicit)

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

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

Spelling fixes for usr.sbin/

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

Add -o/-O options to pkg_version:

-o Show the origin recorded on package generation instead of the
package name.

-O Only list packages whose registered origin is origin.

Based on PR: bin/78640
Submitted by: Marcus Grando <marcus at corp dot grupos.com.br>, flz

Add an -I option to pkg_version:

-I Use only the index file for determining if a package is out of
date. This is much faster than using the version number from a
port's Makefile, at the expense of potentially giving an incor-
rect result if the index file is out of date.

Without this option, the index file is only consulted if "make -V PKGNAME"
cannot be used.

Approved by: portmgr (krion)

- match package version numbers with relational operators

- use glob patterns when matching packages by origin

- csh-style {...} choices in glob matching

- pkg_info: new flag -E (list matching package names only)

- pkg_version: new flag -T (test if a given name matches a pattern)

- new flag -X (interpret pattern as an extended regular expression)

PR: 56961

Vastly decrease amount of memory comsumed in the case when we have to read
ports/INDEX, by allocating eactly amount of memory necessary for storing
each particular entry, insdead of 4K per entry (more than 7000 entries -
go figure). Memory consumption went down to some 500K from some 30M.

C replacement for the Perl5 code.

Submitted by: reg