Update ruby-net-http-persistent to 2.8.

=== 2.8 / 2012-10-17

* Minor enhancements
  * Added Net::HTTP::Persistent::detect_idle_timeout which can be used to
    determine the idle timeout for a host.
  * The read timeout may now be updated for every request.  Issue #33 by
    Mislav Marohnić
  * Added NO_PROXY support.  Pull Request #31 by Laurence Rowe.
  * Added #cert and #key aliases for Net::HTTP compatibility.  Pull request
    #26 by dlee.
  * The artifice gem now disables SSL session reuse to prevent breakage of
    testing frameworks.  Pull Request #29 by Christopher Cooke.
  * Disabled Net::HTTP::Persistent::SSLReuse on Ruby 2+.  This feature is now
    built-in to Net::HTTP.
* Bug fixes
  * Socket options are set again following connection reset.  Pull request #28
    by cmaion.
  * #shutdown now works even if no connections were made.  Pull Request #24 by
    James Tucker.
  * Updated test RSA key size to 1024 bits.  Bug #25 by Gunnar Wolf.
  * The correct host:port are shown in the exception when a proxy connection
    fails.  Bug #30 by glebtv.

www/ruby-net-http-persistent/Makefile

@@ -1,6 +1,6 @@
-# $NetBSD: Makefile,v 1.6 2012/06/13 14:44:45 taca Exp $
+# $NetBSD: Makefile,v 1.7 2012/12/17 15:14:42 taca Exp $
 
-DISTNAME=	net-http-persistent-2.7
+DISTNAME=	net-http-persistent-2.8
 CATEGORIES=	www
 
 MAINTAINER=	pkgsrc-users@NetBSD.org

www/ruby-net-http-persistent/distinfo

@@ -1,5 +1,5 @@
-$NetBSD: distinfo,v 1.6 2012/06/13 14:44:45 taca Exp $
+$NetBSD: distinfo,v 1.7 2012/12/17 15:14:42 taca Exp $
 
-SHA1 (net-http-persistent-2.7.gem) = 6f9bfb4a15b5b1c6c2589a43767fa8fd69d677e7
-RMD160 (net-http-persistent-2.7.gem) = 8a664b4dffbb15b1fb2b3331724fb158b77a2a72
-Size (net-http-persistent-2.7.gem) = 25088 bytes
+SHA1 (net-http-persistent-2.8.gem) = 709f2e4c9e21de33e945d8364a068aa568f44350
+RMD160 (net-http-persistent-2.8.gem) = c0d64b029983d21a3cc0a18a8caebdff32fbfcc4
+Size (net-http-persistent-2.8.gem) = 27648 bytes