Log Message:
Update to 2.30

Upstream changes:
2.30  19/06/2018
- skip white_space test on MSWin32 as Windows will report that both
  files exist, which is obviously a 'feature'

2.28  08/06/2018 (madroach, ARC, OCBNET, ppisar)
- fix creating file with trailing whitespace on filename - fixes 103279
- allow archiving with absolute pathnames - fixes 97748
- small POD fix
- Speed up extract when archive contains lots of files
- CVE-2018-12015 directory traversal vulnerability [RT#125523]