Web-hook create and update

webhook.patch

diff --git a/CRM/Sparkpost.php b/CRM/Sparkpost.php
index 1c94882..9a448e0 100644
--- a/CRM/Sparkpost.php
+++ b/CRM/Sparkpost.php
@@ -117,6 +117,12 @@ class CRM_Sparkpost {
         // ie. webhook, transmission but NOT webhook/id
         // This is a create operation so use POST
         curl_setopt($ch, CURLOPT_POST, TRUE);
+        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
+      }
+      else {
+        // ie. webhook/id
+        // update operation
+        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "PUT");
       }
       curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($content, JSON_UNESCAPED_SLASHES));
     }

How is this patch implemented?