header(sha1, path, 0644, sha2, path, 0644);
if (cgit_diff_files(sha1, sha2, print_line))
cgit_print_error("Error running diff");
header(sha1, path, 0644, sha2, path, 0644);
if (cgit_diff_files(sha1, sha2, print_line))
cgit_print_error("Error running diff");