varint.hon commit tree-diff: convert diff_root_tree_sha1() to just call diff_tree_sha1 with old=NULL (0b707c3)
   1#ifndef VARINT_H
   2#define VARINT_H
   3
   4#include "git-compat-util.h"
   5
   6extern int encode_varint(uintmax_t, unsigned char *);
   7extern uintmax_t decode_varint(const unsigned char **);
   8
   9#endif /* VARINT_H */