Certificate format fixed

Author: Spomky

src/Component/KeyManagement/KeyConverter/KeyConverter.php

@@ -176,7 +176,7 @@ public static function loadFromX5C(array $x5c): array
         $last_issuer = null;
         $last_subject = null;
         foreach ($x5c as $cert) {
-            $current_cert = '-----BEGIN CERTIFICATE-----'.PHP_EOL.$cert.PHP_EOL.'-----END CERTIFICATE-----';
+            $current_cert = '-----BEGIN CERTIFICATE-----'.PHP_EOL.\chunk_split($cert,64,PHP_EOL).PHP_EOL.'-----END CERTIFICATE-----';
             $x509 = \openssl_x509_read($current_cert);
             if (false === $x509) {
                 $last_issuer = null;