Handle bindto error

[twose]

code:

$ctx = stream_context_create([
    'socket' => [
        'bindto' => 'invalid',
    ],
]);
$fp = stream_socket_client(
    'tcp://www.' . str_repeat('x', 100) . '.com:80',
    $errno, $errstr, 30, STREAM_CLIENT_CONNECT, $ctx
);
?>

before:

Warning: stream_socket_client(): php_network_getaddresses: getaddrinfo failed: nodename nor servname provided, or not known in %s/bindto.php on line 17

Warning: stream_socket_client(): unable to connect to tcp://www.xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.com:80 (php_network_getaddresses: getaddrinfo failed: nodename nor servname provided, or not known) in %s/bindto.php on line 17
[Wed Jul 29 12:07:22 2020]  Script:  '%s/bindto.php'
Zend/zend_string.h(133) :  Freeing 0x000000010cd13f00 (224 bytes), script=%s/bindto.php
=== Total 1 memory leaks detected ===

after:

Warning: stream_socket_client(): Unable to connect to tcp://%s:80 (Failed to parse address "invalid") in %s on line %d

[cmb69]

This seems to affect PHP 7.3/7.4 as well.