[MKISOFS]

[MKISOFS]
Update mkisofs to schily-2017-02-16, which comes with the following fixes:
- Fix null termination in libschily's Win32 implementation of opendir (submitted upstream by me).
  The bug was triggered when building an ISO from a directory instead of a graft-points (.lst) file.
- Prevent -duplicates-once from being used together with -cache-inodes. These options exclude each other.

svn path=/trunk/; revision=74112