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

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

Revert r256095, r256120 (partial), r256121:

r256095:
- Add gnu/usr.bin/rcs back to the base system.

r256120:
- Add WITHOUT_RCS back to src.conf.5.

r256121:
- Remove UPDATING entry regarding gnu/usr.bin/rcs removal.

Requested by: many
Approved by: re (marius)
Discussed with: core

Utilize SCRIPTS.

Drop support for COPY, -c has been the default mode of install(1)
for a long time now.

Approved by: bde

s/${INSTALL} -c/${INSTALL} ${COPY}/

MAN[1-9] -> MAN.

Change `install' to `${INSTALL}' so that default install flags can be
specified in the top level Makefiles.

chmr@edvz.tu-graz.ac.at

gnu/rcs/rcs and rcsfreeze have the wrong man extension in their
Makefiles (.0)

Update makefiles:
centralize obj/noobj conditional in Makefile.inc
use DPADD
don't compile profiling library
install rcsfreeze correctly
After this commit, the freebsd and netbsd rcs distribution will be in sync.

Don't echo anything when doing null args, since not doing anything is
more like the standard behavior.

This commit was generated by cvs2svn to compensate for changes in r9,
which included commits to RCS files with non-trunk default branches.

Updated GNU utilities