kern/182610: [patch] arc4random(): replace RC4 with ChaCha20, follow OpenBSD

[linimon at FreeBSD.org]

Old Synopsis: arc4random(): replace RC4 with ChaCha20, follow OpenBSD
New Synopsis: [patch] arc4random(): replace RC4 with ChaCha20, follow OpenBSD

Responsible-Changed-From-To: freebsd-bugs->secteam
Responsible-Changed-By: linimon
Responsible-Changed-When: Tue Oct 8 02:25:56 UTC 2013
Responsible-Changed-Why: 
Over to maintainer(s).

http://www.freebsd.org/cgi/query-pr.cgi?pr=182610