- Copy stable/10@285827 to releng/10.2 in preparation for 10.2-RC1
builds.
- Update newvers.sh to reflect RC1.
- Update __FreeBSD_version to reflect 10.2.
- Update default pkg(8) configuration to use the quarterly branch.[1]

Discussed with: re, portmgr [1]
Approved by: re (implicit)
Sponsored by: The FreeBSD Foundation

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

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

Make ``realpath'' behave like ``realpath .''.

Enhance realpath(1) in a number of ways:

- Allow realpath to accept multiple paths on the command line.
- Add -q to suppress warnings if some paths can't be processed, and use
getopt(3) to process flags.
- Print the path being requested rather than a possibly partially
processed path when a failure occurs so that you can tell which of
several passed paths did fail.

MFC after: 1 week
PR: 112920
Submitted by: Ighighi <ighighi@gmail.com>

Remove clause 3 from the UCB licenses.

OK'ed by: imp, core

realpath(3) should use PATH_MAX instead of MAXPATHLEN according to POSIX.

This also reverts the PATH_MAX -> MAXPATHLEN part of
rev 1.3 of src/bin/realpath/realpath.c

Requested by: imp
Reviewed by: imp, bde

Remove undocumented behavior (return current work dir if no path
is given as argument) that is not present in 4-Stable.
It was introduced when realpath(1) was split out of pwd(1).
The removed behavior is provided by pwd(1).

Reviewed by: mike

- use MAXPATHLEN per realpath(3)
- use the problematic part of the path, instead of the argument,
when reporting an error.

Reviewed by: mike

Check the return value of getcwd() to avoid printf()ing a NULL. Mark
usage() as __dead2 to avoid a GCC warning.

Spotted by: keramida

Move the realpath(1) source into its own directory. Previously, it
shared sources with pwd(1).