Merge branch 'sonority-develop-patch-76321' into 'develop'

Fixed typo. Wrong "subjectAltName" with leading dot when using self-signed certificates.

See merge request ispconfig/ispconfig3!1671

Author: Till Brehm

server/plugins-available/nginx_plugin.inc.php

@@ -161,7 +161,7 @@ function ssl($event_name, $data) {
         subjectAltName         = @alt_names
 
         [alt_names]
-        DNS.1                  = .$domain";
+        DNS.1                  = $domain";
 
 			$ssl_cnf_file = $ssl_dir.'/openssl.conf';
 			$app->system->file_put_contents($ssl_cnf_file, $ssl_cnf);