[PATCH 0/3] Enable parallelized tests

This patch pair enables parallel tests.  On a pretty beefy machine,

	$ /usr/bin/time make -j50

shows this:

	69.33user 92.33system 0:59.26elapsed 272%CPU (0avgtext+0avgdata
	0maxresident)k 0inputs+0outputs (0major+33007360minor)pagefaults 0swaps

vs.

	$ /usr/bin/time make

showing this:

	61.25user 75.10system 3:57.68elapsed 57%CPU (0avgtext+0avgdata
	0maxresident)k 0inputs+0outputs (0major+32897071minor)pagefaults 0swaps

Note: the machine was used for other tasks during the test, too.

These results are with SVN/CVS tests enabled.  I am pretty sure that the
results would be even more impressive without them (the SVN/CVS tests come
all at the end, and seem to idle the CPU mostly, and the last few seconds
are only spent on 2 tests).

Johannes Schindelin (3):
  t9700: remove useless check
  tests: Clarify dependencies between tests, 'aggregate-results' and
    'clean'
  Enable parallel tests

 t/Makefile      |   15 ++++++++++++---
 t/t9700/test.pl |    3 ---
 t/test-lib.sh   |   11 ++++++++++-
 3 files changed, 22 insertions(+), 7 deletions(-)