Update to 1.30. Noteworthy changes:
- Member names containing '..' components are now skipped when extracting.
- Report erroneous use of position-sensitive options.
- --numeric-owner now affects private headers too.
- Fixed the --delay-directory-restore option
- The --warnings=failed-read option
- The --warnings=none option now suppresses all warnings
- Fix reporting of hardlink mismatches during compare