rem: if (*path == '/' && rootdir)
add: if (*path == '/' && rootdir) {
context: char *alloc_sanitize_path(const char *path, const char *rootdir){	char *buf;	int rlen, plen = strlen(path);	if (*path == '/' && rootdir)		rlen = strlen(rootdir);	else		rlen = 0;	if (!(buf = new_array(char, rlen + plen + 1)))		out_of_memory("alloc_sanitize_path");	if (rlen)		memcpy(buf, rootdir, rlen);	memcpy(buf + rlen, path, plen + 1);	if (rlen)		rlen++;	sanitize_path(buf + rlen, NULL);	if (rlen && buf[rlen] == '.' && buf[rlen+1] == '\0')		buf[rlen-1] = '\0';	return buf;}