- Copy stable/10 (r259064) to releng/10.0 as part of the
10.0-RELEASE cycle.
- Update __FreeBSD_version [1]
- Set branch name to -RC1

[1] 10.0-CURRENT __FreeBSD_version value ended at '55', so
start releng/10.0 at '100' so the branch is started with
a value ending in zero.

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

Merge bmake-20120831 from vendor/NetBSD/bmake/dist.

Provenance: ftp://ftp.netbsd.org/pub/NetBSD/misc/sjg

Import the 6-May-2012 release of the "Portable" BSD make tool (from NetBSD).

Submitted by: sjg@juniper.net