git-count-objects.txt: describe each line in -v output The current description requires a bit of guessing (what clause corresponds to what printed line?) and lacks information, such as the unit of size and size-pack. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>