test_client.rb: load openssl

* test/xmlrpc/test_client.rb: try loading openssl to fix autoloading
  constant.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41506 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/xmlrpc/test_client.rb

@@ -1,6 +1,10 @@
 require 'minitest/autorun'
 require 'xmlrpc/client'
 require 'net/http'
+begin
+  require 'openssl'
+rescue LoadError
+end
 
 module XMLRPC
   class ClientTest < MiniTest::Unit::TestCase