test to exercise --nn without --quiet.  Other params are to get a good result.
Change data-set. Will this prove stable with --nn?
unlink temp stdout & stderr files before running the tests - for safety.
require perl 5.014 or later
This _may_ be the 32-bit random failure smoking gun (constant assigned into 'a' truncated from 64 to 32 bit in 32-bit envs)
Lowecase the hex constant to better distinguish it from the ULL suffix.
Merge pull request #230 from arielf/master

Add test to verify --nn without --quiet.  Other params are to get a good result