For example, it makes no sense to check the presence of a file
named "HEAD" when calling "git log HEAD" in a bare repository.
Noticed by Han-Wen Nienhuys.
Signed-off-by: Johannes Schindelin <Johannes.Schindelin@gmx.de>
We still have too few of them, but we have to start from somewhere.
The general rule is to make tests easy to debug when run with -v (notice
use of seemingly useless echo everywhere in the new tests).
Signed-off-by: Junio C Hamano <junkio@cox.net>
