Jens Lehmann authored Jun 19, 2014 and Junio C Hamano committed Jul 14, 2014

Test that the bisect command updates the work tree as expected. To make
that work with the new submodule test framework a git_bisect helper
function is added. This adds a commit after the one given to be switched
to and makes that one the bad commit. The starting point is then given to
bisect as the good commit which makes bisect change the work tree to the
commit in between, which is the commit given.

Signed-off-by: Jens Lehmann <Jens.Lehmann@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>