GIT 0.99.7c

Contains the following post-0.99.7b fixes:

 - rsh.c string termination fix by H. Peter Anvin
 - further fetch fixes by Sergey Vlasov
 - diff-tree documentation by Robert Watson.
 - 'git diff --cached' synonymous to 'git diff --cached HEAD'.
 - subprocess.py licensing status clarification.

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

1. dcde55b [PATCH] assorted delta code cleanup by Nicolas Pitre · 20 years ago
2. 69a2d42 [PATCH] denser delta header encoding by Nicolas Pitre · 20 years ago
3. 355e76a [PATCH] Tweak count-delta interface by Junio C Hamano · 20 years ago
4. 8b7d510 [PATCH] Fix count-delta overcounting by Junio C Hamano · 20 years ago
5. 844e6e4 [PATCH] Do not include unused header files. by Junio C Hamano · 20 years ago
6. 8597697 [PATCH] Update rename/copy similarity estimator. by Junio C Hamano · 20 years ago