Fixing ZF-9143: E_NOTICE when using Client_Adapter_Proxy

git-svn-id: http://framework.zend.com/svn/framework/standard/trunk@21016 44c647ce-9c0f-0410-b52a-842ac1e357ba

library/Zend/Http/Client/Adapter/Proxy.php

@@ -60,6 +60,7 @@ class Zend_Http_Client_Adapter_Proxy extends Zend_Http_Client_Adapter_Socket
         'ssltransport'  => 'ssl',
         'sslcert'       => null,
         'sslpassphrase' => null,
+        'sslusecontext' => false,
         'proxy_host'    => '',
         'proxy_port'    => 8080,
         'proxy_user'    => '',