* followed by SP and subject line.
*/
if (get_sha1_hex(buf.buf, sha1) ||
- (40 <= buf.len && !isspace(buf.buf[40])) ||
+ (buf.len > 40 && !isspace(buf.buf[40])) ||
(!is_prereq && buf.len <= 40)) {
if (report_path)
error(_("unrecognized header: %s%s (%d)"),