Log Message:
Update to 1.6 and take maintainership.  Changes:

  * Temporary file names no longer use the process ID as part of the name
  * Use arc4random_uniform() instead of random() or lrand48()
  * The prngd or egd daemon can now be used on systems without /dev/urandom
  * Added long option support for compatibility with GNU coreutils version
  * Fixed an installation issue on Cygwin