extern const char git_usage_string[];
extern void help_unknown_cmd(const char *cmd);
-extern void stripspace(FILE *in, FILE *out, int skip_comments);
+extern size_t stripspace(char *buffer, size_t length, int skip_comments);
extern int write_tree(unsigned char *sha1, int missing_ok, const char *prefix);
extern void prune_packed_objects(int);