Extend Net::HTTP#open_timeout for chkbuild on Solaris 10s.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56662 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/net/smtp/test_smtp.rb

@@ -128,7 +128,7 @@ module Net
         end
         smtp = Net::SMTP.new("localhost", servers[0].local_address.ip_port)
         smtp.enable_tls
-        smtp.open_timeout = 0.1
+        smtp.open_timeout = 1
         smtp.start do
         end
       ensure