adds restore_error_handler before throwing exception

Author: tomponline

src/Nats/Connection.php

@@ -462,6 +462,7 @@ function ($errno, $errstr, $errfile, $errline) {
 
                 if (!stream_socket_enable_crypto(
                         $this->streamSocket, true, STREAM_CRYPTO_METHOD_TLSv1_2_CLIENT)) {
+                    restore_error_handler();
                     throw Exception::forFailedConnection('Error negotiating crypto');
                 }