bug symfony#38086 [HttpClient] with "bindto" with NativeHttpClient (nicolas-grekas)

This PR was merged into the 4.4 branch.

Discussion
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[HttpClient] with "bindto" with NativeHttpClient

| Q             | A
| ------------- | ---
| Branch?       | 4.4
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | Fix symfony#38081
| License       | MIT
| Doc PR        | -

/cc @derrabus

Commits
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cea0531 [HttpClient] with "bindto" with NativeHttpClient

Author: fabpot

src/Symfony/Component/HttpClient/NativeHttpClient.php

@@ -214,7 +214,7 @@ public function request(string $method, string $url, array $options = []): Respo
                 'disable_compression' => true,
             ], static function ($v) { return null !== $v; }),
             'socket' => [
-                'bindto' => $options['bindto'],
+                'bindto' => $options['bindto'] ?: '0:0',
                 'tcp_nodelay' => true,
             ],
         ];