K 10
svn:author
V 5
kevlo
K 8
svn:date
V 27
2016-05-22T14:31:20.193467Z
K 7
svn:log
V 188
arc4random() returns 0 to (2**32)−1, use an alternative to initialize
i_gen if it's zero rather than a divide by 2.

With inputs from  delphij, mckusick, rmacklem

Reviewed by:	mckusick

END