Pull up following revision(s) (requested by tsutsui in ticket #68):
doc/BUILDING.mdoc: revision 1.88
BUILDING: revision 1.99
build.sh: revision 1.254
Add a missing period.
Add sanity checks for live-image and install-image targets
(which require mtree spec files built with MKUNPRIVED=yes)
to avoid unexpected makefs(8) error during image builds:
- if release op is specified with live-image or install-image
at the same time, make sure -U is also specified for the image builds
- before perform live-image and install-image ops check METALOG file
in DESTDIR to see if the build have been performed with MKUNPRIVED
XXX: Probably toolchain should create consistent spec files in
XXX: DESTDIR/etc/mtree dir regardless of MKUNPRIVED settings.