GIT 0.99.9d

This is primarily to include the 'git clone -l' (without -s) fix,
first spotted and diagnosed by Linus and caused James Bottomley's
repository to become unreadable.  It also contains documentation
updates happened on the "master" branch since 0.99.9c

Signed-off-by: Junio C Hamano <junkio@cox.net>