Test failures on cygwin (v1.6.0)

Hi *,

Having upgraded to v1.6.0, via tar-ball as usual, I must note a new
"make test" failure, namely t9700-perl-git.sh.  In order to pass, I
need to run:

GIT_SKIP_TESTS='t0004 t3700.2[1234] t9700' make test

I haven't had time to look into the new failure yet; I'll report back
when I know more. (I will send a couple of minor patches related to
the 1.6.0 build)

Also, the new test summary shows (on Linux and cygwin):

          Linux    Cygwin
fixed     1        3
success   3748     3511
failed    0        0
broken    2        2
total     3751     3520
[time:    5m47s    47m]

Note the number of fixed on cygwin. It took some time to find, but it
appears that the additional FIXED where t0050-filsystem.sh tests
5 "merge (case change)" and 6 "add (with different case)".  Again, I
haven't investigated yet.

ATB,

Ramsay Jones