Git 2.29

1. 5545442 *.[ch]: remove extern from function declarations using spatch by Denton Liu · 7 years ago
2. 1c4b660 cleanups: ensure that git-compat-util.h is included first by David Aguilar · 11 years ago
3. d2c1898 varint: make it available outside the context of pack by Junio C Hamano · 14 years ago