ports/144235: Update net/p5-IO-INET6 to 2.57

[skreuzer at FreeBSD.org]

Synopsis: Update net/p5-IO-INET6 to 2.57

Responsible-Changed-From-To: freebsd-ports-bugs->skreuzer
Responsible-Changed-By: skreuzer
Responsible-Changed-When: Tue Feb 23 22:54:19 UTC 2010
Responsible-Changed-Why: 
I'll take it.

http://www.freebsd.org/cgi/query-pr.cgi?pr=144235