Ignore linter failures for CURL_SSLVERSION constants

lib/HttpClient/CurlClient.php

@@ -102,13 +102,18 @@ public function request($method, $absUrl, $headers, $params, $hasFile)
         if (!Stripe::$verifySslCerts) {
             $opts[CURLOPT_SSL_VERIFYPEER] = false;
         }
+        // @codingStandardsIgnoreStart
+        // PSR2 requires all constants be upper case. Sadly, the CURL_SSLVERSION
+        // constants to not abide by those rules.
+        //
         // Opt into TLS 1.x support on older versions of curl. This causes some
         // curl versions, notably on RedHat, to upgrade the connection to TLS
         // 1.2, from the default TLS 1.0.
         if (!defined('CURL_SSLVERSION_TLSv1')) {
             define('CURL_SSLVERSION_TLSv1', 1); // constant not defined in PHP < 5.5
         }
         $opts[CURLOPT_SSLVERSION] = CURL_SSLVERSION_TLSv1;
+        // @codingStandardsIgnoreEnd
 
         curl_setopt_array($curl, $opts);
         $rbody = curl_exec($curl);