Ruby

merges r24840 and r24841 from trunk into ruby_1_9_1.¶

• lib/net/http.rb (Net::HTTPHeader::encode_kvpair): also call to_s
  to k. A patch from swdyh [email protected]
  http://github.com/swdyh/ruby/tree/c847f43c2ccb679b9ff728f8b1b16c6ceeb57f39

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_1@25598 b2dd03c8-39d4-4d8f-98ff-823fe69b080e