[msysgit? bug] CRLF in info/grafts causes parse error

When creating an info/grafts under windows, one typically gets a CRLF file.
Then:

* gitk loudly complains about "bad graft data"
* "git log > /dev/null" does not report any problem
* "git log > foo" does report the problem on sdterr, but exit code is still 0

Recreating the graft as a LF file (eg with "echo" or "printf") causes the
graft to be properly interpreted.