Copy stable/10@r272459 to releng/10.1 as part of
the 10.1-RELEASE process.

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

MFC various moves of tools/regressions/ tests to the new infrastructure.

- r263220 Migrate tools/regression/sbin/ to the new tests layout.
- r263222 Add Makefile missed in r263220.
- r263226 Migrate tools/regression/{usr.bin/lastcomm,usr.sbin}/ to the new tests layout.
- r263227 Migrate most of tools/regression/usr.bin/ to the new tests layout.
- r263345 Expand tabs that sneaked in into spaces.
- r263346 Migrate tools/regression/usr.bin/make/ to the new tests layout.
- r263348 Add Makefiles missed in r263346.
- r263351 Migrate tools/regression/usr.bin/pkill/ to the new tests layout.
- r263388 Mark multi_test as requiring /usr/share/dict/words.
- r263814 Fix path to the run.pl script to let these tests run.
- r264742 Prevent building tests when bootstrapping make.

This is 'make tinderbox' clean.

Migrate tools/regression/usr.bin/make/ to the new tests layout.

Note that these tests are for fmake, not bmake, and thus they are not
installed nor run when bmake is selected (the default). Yes, I have
wasted a *ton* of time on moving tests for no real reason other than
ensuring they are not left behind.

But maybe, just maybe, it was not work in vain: the majority of these
tests also work with bmake and the few that don't may point at broken
stuff. For example, the tests for the "archive" feature do not work
with bmake, but bmake's manpage and source tree seem to imply that they
should. So... to be investigated later; need to poke sjg@.

Spelling fixes for tools/

Add some $FreeBSD$ tags so svn will allow the commit.

Add support for TODO tests. These are tests that are supposed to fail,
because of a make bug that should be fixed.

Change the test infrastructure so that tests are easier to maintain and
so that make(1) will run in an almost clean environment and enhance the
description of the test infrastructure.

Add the ability to have multiple tests carried out per test script.

Give some tests more meaningful names.

Fix the usage message from the test scripts.

Make it possible to pass several commands to the test scripts like:
'sh test.t setup run compare clean'.

Add an initial regression test suite for make(1).

Submitted by: Max Okumoto <okumotu@ucsd.edu> (partly, initial version)